CVE-2026-20128
📛 CVE Title
Cisco Catalyst SD-WAN Manager Information Disclosure Vulnerability
Description
A vulnerability in the Data Collection Agent (DCA) feature of Cisco Catalyst SD-WAN Manager could allow an unauthenticated, remote attacker to gain DCA user privileges on an affected system. This vulnerability is due to the presence of a credential file for the DCA user on an affected system. An attacker could exploit this vulnerability by sending a crafted HTTP request and reading the file that contains the DCA password from that affected system. A successful exploit could allow the attacker to access another affected system and gain DCA user privileges. Note: Cisco Catalyst SD-WAN Manager releases 20.18 and later are not affected by this vulnerability.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- cisco
- CVSS severity
- HIGH
- CVSS score
- 7.5 / 10
- CVSS vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H- Effective score
- 7.5 / 10 HIGH source: CNA overview
- CWE(s)
-
CWE-257 - Reserved
- 2025-10-08
- Published
- 2026-02-25 16:14 UTC
- Last updated
- 2026-04-21 03:55 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/20xxx/CVE-2026-20128.json
- Linked Threat
- CVE-2026-20128 — Cisco Catalyst SD-WAN Manager: Cisco Catalyst SD-WAN Manager Storing Passwords in a Recoverable Format Vulnerability
CISA Known Exploited Vulnerabilities CISA KEV
CISA has confirmed in-the-wild exploitation of this CVE. Federal agencies must remediate by the due date below; private orgs should treat it as priority-1.
- Vulnerability name
- Cisco Catalyst SD-WAN Manager Storing Passwords in a Recoverable Format Vulnerability
- Vendor / project
- Cisco
- Product
- Catalyst SD-WAN Manager
- Date added to KEV
- 2026-04-20
- Remediation due
- 2026-04-23
- Required action
- Please adhere to CISA’s guidelines to assess exposure and mitigate risks associated with Cisco SD-WAN devices as outlines in CISA’s Emergency Directive 26-03 (URL listed below in Notes) and CISA’s “Hunt & Hardening Guidance for Cisco SD-WAN Devices (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available.
- Ransomware campaign use
- Unknown
- CISA notes
- CISA Mitigation Instructions: https://www.cisa.gov/news-events/directives/ed-26-03-mitigate-vulnerabilities-cisco-sd-wan-systems ; https://www.cisa.gov/news-events/directives/supplemental-direction-ed-26-03-hunt-and-hardening-guidance-cisco-sd-wan-systems ; https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v ; https://nvd.nist.gov/vuln/detail/CVE-2026-20128
- CISA listing
- www.cisa.gov/known-exploited-vulnerabilities-catalog
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2026-02-25 17:25:30 UTC
- NVD last modified
- 2026-04-21 13:00:03 UTC
- NVD CVSS v3.1
- 7.5 / 10 HIGH source: psirt@cisco.com
- NVD CVSS vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H- Exploitability subscore
- 0.8 / 10
- Impact subscore
- 6.0 / 10
- EPSS score
- 0.0007 (probability of exploitation in next 30 days)
- EPSS percentile
- 21.09% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24
NVD / KEV / EPSS data refreshed 2026-05-25 04:17 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
European Union Vulnerability Database ENISA EUVD
ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.
- EUVD ID
-
EUVD-2026-8676 - Assigner
- cisco
- Published
- Feb 25, 2026, 4:14:12 PM
- Updated
- Apr 21, 2026, 3:55:31 AM
- EUVD base score (CVSS 3.1)
-
7.5 / 10
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H - EUVD-reported EPSS
- 0.0700
- Vendors
- Cisco
- Products
-
Cisco Catalyst SD-WAN Manager (18.3.0)Cisco Catalyst SD-WAN Manager (20.3.4.0.19)Cisco Catalyst SD-WAN Manager (20.3.4.0.24)Cisco Catalyst SD-WAN Manager (20.4.2.2.1)Cisco Catalyst SD-WAN Manager (20.5.1.0.2)Cisco Catalyst SD-WAN Manager (18.4.303)Cisco Catalyst SD-WAN Manager (17.2.5)Cisco Catalyst SD-WAN Manager (20.3.8)Cisco Catalyst SD-WAN Manager (20.3.4.2.2)Cisco Catalyst SD-WAN Manager (18.4.1)Cisco Catalyst SD-WAN Manager (19.2.1)Cisco Catalyst SD-WAN Manager (20.5.1)Cisco Catalyst SD-WAN Manager (20.6.2.2)Cisco Catalyst SD-WAN Manager (18.3.5)Cisco Catalyst SD-WAN Manager (20.4.2.2.4)Cisco Catalyst SD-WAN Manager (20.7.1EFT2)Cisco Catalyst SD-WAN Manager (20.9.1EFT2)Cisco Catalyst SD-WAN Manager (18.3.8)Cisco Catalyst SD-WAN Manager (20.1.3.1)Cisco Catalyst SD-WAN Manager (18.3.3.1)Cisco Catalyst SD-WAN Manager (20.3.4.3)Cisco Catalyst SD-WAN Manager (20.3.3.0.16)Cisco Catalyst SD-WAN Manager (18.3.6)Cisco Catalyst SD-WAN Manager (18.3.7)Cisco Catalyst SD-WAN Manager (17.2.8)Cisco Catalyst SD-WAN Manager (20.3.2.1)Cisco Catalyst SD-WAN Manager (20.5.1.2)Cisco Catalyst SD-WAN Manager (20.3.6)Cisco Catalyst SD-WAN Manager (19.2.3)Cisco Catalyst SD-WAN Manager (18.3.4)Cisco Catalyst SD-WAN Manager (20.4.2.3)Cisco Catalyst SD-WAN Manager (17.2.10)Cisco Catalyst SD-WAN Manager (19.2.099)Cisco Catalyst SD-WAN Manager (20.1.1.1)Cisco Catalyst SD-WAN Manager (20.3.3.0.4)Cisco Catalyst SD-WAN Manager (20.3.4.1)Cisco Catalyst SD-WAN Manager (20.3.4.0.20)Cisco Catalyst SD-WAN Manager (20.6.2.2.4)Cisco Catalyst SD-WAN Manager (20.3.3.0.2)Cisco Catalyst SD-WAN Manager (17.2.6)Cisco Catalyst SD-WAN Manager (20.4.1.0.1)Cisco Catalyst SD-WAN Manager (18.4.4)Cisco Catalyst SD-WAN Manager (20.3.4.0.11)Cisco Catalyst SD-WAN Manager (20.3.3.1.5)Cisco Catalyst SD-WAN Manager (17.2.7)Cisco Catalyst SD-WAN Manager (20.6.1.1)Cisco Catalyst SD-WAN Manager (19.2.097)Cisco Catalyst SD-WAN Manager (20.1.2)Cisco Catalyst SD-WAN Manager (19.0.0)Cisco Catalyst SD-WAN Manager (20.3.5.1)Cisco Catalyst SD-WAN Manager (20.3.814)Cisco Catalyst SD-WAN Manager (20.3.4.0.6)Cisco Catalyst SD-WAN Manager (20.3.3.1.7)Cisco Catalyst SD-WAN Manager (18.4.302)Cisco Catalyst SD-WAN Manager (20.6.5.1.4)Cisco Catalyst SD-WAN Manager (18.4.0)Cisco Catalyst SD-WAN Manager (19.1.0)Cisco Catalyst SD-WAN Manager (19.2.4)Cisco Catalyst SD-WAN Manager (20.4.1.0.02)Cisco Catalyst SD-WAN Manager (20.1.12)Cisco Catalyst SD-WAN Manager (19.2.31)Cisco Catalyst SD-WAN Manager (18.3.1.1)Cisco Catalyst SD-WAN Manager (18.2.0)Cisco Catalyst SD-WAN Manager (20.4.2.2)Cisco Catalyst SD-WAN Manager (20.3.4)Cisco Catalyst SD-WAN Manager (18.4.6)Cisco Catalyst SD-WAN Manager (20.3.3)Cisco Catalyst SD-WAN Manager (20.4.2)Cisco Catalyst SD-WAN Manager (20.3.7)Cisco Catalyst SD-WAN Manager (20.3.813)Cisco Catalyst SD-WAN Manager (18.3.6.1)Cisco Catalyst SD-WAN Manager (20.6.2.1)Cisco Catalyst SD-WAN Manager (20.5.0.1.1)Cisco Catalyst SD-WAN Manager (20.3.2.0.5)Cisco Catalyst SD-WAN Manager (19.2.4.0.8)Cisco Catalyst SD-WAN Manager (19.0.1a)Cisco Catalyst SD-WAN Manager (20.4.1.2)Cisco Catalyst SD-WAN Manager (20.1.1)Cisco Catalyst SD-WAN Manager (20.3.5.0.9)Cisco Catalyst SD-WAN Manager (20.3.2.1_927)Cisco Catalyst SD-WAN Manager (20.1.3)Cisco Catalyst SD-WAN Manager (19.2.4.0.9)Cisco Catalyst SD-WAN Manager (20.3.2_929)Cisco Catalyst SD-WAN Manager (20.6.2.0.4)Cisco Catalyst SD-WAN Manager (20.3.4.0.1)Cisco Catalyst SD-WAN Manager (20.3.4.1.2)Cisco Catalyst SD-WAN Manager (17.2.9)Cisco Catalyst SD-WAN Manager (20.3.2.1_930)Cisco Catalyst SD-WAN Manager (20.3.4.0.25)Cisco Catalyst SD-WAN Manager (20.3.4.2.1)Cisco Catalyst SD-WAN Manager (19.2.929)Cisco Catalyst SD-WAN Manager (20.3.1)Cisco Catalyst SD-WAN Manager (20.4.1.1)Cisco Catalyst SD-WAN Manager (20.3.3.0.14)Cisco Catalyst SD-WAN Manager (20.3.2_937)Cisco Catalyst SD-WAN Manager (20.3.4.0.9)Cisco Catalyst SD-WAN Manager (18.3.3)Cisco Catalyst SD-WAN Manager (19.2.098)Cisco Catalyst SD-WAN Manager (26.1.1)Cisco Catalyst SD-WAN Manager (20.4.2.2.2)Cisco Catalyst SD-WAN Manager (20.6.2.2.7)Cisco Catalyst SD-WAN Manager (20.3.3.0.18)Cisco Catalyst SD-WAN Manager (20.6.0.18.4)Cisco Catalyst SD-WAN Manager (20.3.7.1)Cisco Catalyst SD-WAN Manager (18.4.501_ES)Cisco Catalyst SD-WAN Manager (20.4.1.1.5)Cisco Catalyst SD-WAN Manager (18.4.3)Cisco Catalyst SD-WAN Manager (20.3.2_928)Cisco Catalyst SD-WAN Manager (18.3.1)Cisco Catalyst SD-WAN Manager (20.6.3.0.2)Cisco Catalyst SD-WAN Manager (18.4.0.1)Cisco Catalyst SD-WAN Manager (20.12.501)Cisco Catalyst SD-WAN Manager (20.4.2.0.2)Cisco Catalyst SD-WAN Manager (19.2.2)Cisco Catalyst SD-WAN Manager (20.3.4.1.1)Cisco Catalyst SD-WAN Manager (20.3.5.0.8)Cisco Catalyst SD-WAN Manager (20.3.3.0.8)Cisco Catalyst SD-WAN Manager (20.6.2.2.3)Cisco Catalyst SD-WAN Manager (20.4.2.1)Cisco Catalyst SD-WAN Manager (19.2.0)Cisco Catalyst SD-WAN Manager (20.3.3.1.1)Cisco Catalyst SD-WAN Manager (19.2.32)Cisco Catalyst SD-WAN Manager (20.3.3.1.10)Cisco Catalyst SD-WAN Manager (20.6.1.2)Cisco Catalyst SD-WAN Manager (20.6.0.18.3)Cisco Catalyst SD-WAN Manager (20.4.2.1.1)Cisco Catalyst SD-WAN Manager (19.3.0)Cisco Catalyst SD-WAN Manager (18.4.5)Cisco Catalyst SD-WAN Manager (20.3.5.0.7)Cisco Catalyst SD-WAN Manager (20.5.1.0.1)Cisco Catalyst SD-WAN Manager (20.3.3.1.2)Cisco Catalyst SD-WAN Manager (19.2.4.0.1)Cisco Catalyst SD-WAN Manager (20.3.3.2)Cisco Catalyst SD-WAN Manager (20.3.2)Cisco Catalyst SD-WAN Manager (20.6.1.0.1)Cisco Catalyst SD-WAN Manager (20.3.2.0.6)
- Aliases
-
GHSA-mp6j-7g85-8pg2
ENISA description: A vulnerability in the Data Collection Agent (DCA) feature of Cisco Catalyst SD-WAN Manager could allow an unauthenticated, remote attacker to gain DCA user privileges on an affected system. This vulnerability is due to the presence of a credential file for the DCA user on an affected system. An attacker could exploit this vulnerability by sending a crafted HTTP request and reading the file that contains the DCA password from that affected system. A successful exploit could allow the attacker to access another affected system and gain DCA user privileges. Note: Cisco Catalyst SD-WAN Manager releases 20.18 and later are not affected by this vulnerability.
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| Cisco | Cisco Catalyst SD-WAN Manager |
20.1.12 (affected),
19.2.1 (affected),
18.4.4 (affected),
18.4.5 (affected),
20.1.1.1 (affected),
20.1.1 (affected),
19.3.0 (affected),
19.2.2 (affected),
19.2.099 (affected),
18.3.6 (affected),
18.3.7 (affected),
19.2.0 (affected),
18.3.8 (affected),
19.0.0 (affected),
19.1.0 (affected),
18.4.302 (affected),
18.4.303 (affected),
19.2.097 (affected),
19.2.098 (affected),
17.2.10 (affected),
18.3.6.1 (affected),
19.0.1a (affected),
18.2.0 (affected),
18.4.3 (affected),
18.4.1 (affected),
17.2.8 (affected),
18.3.3.1 (affected),
18.4.0 (affected),
18.3.1 (affected),
17.2.6 (affected),
17.2.9 (affected),
18.3.4 (affected),
17.2.5 (affected),
18.3.1.1 (affected),
18.3.5 (affected),
18.4.0.1 (affected),
18.3.3 (affected),
17.2.7 (affected),
18.3.0 (affected),
19.2.3 (affected),
18.4.501_ES (affected),
20.3.1 (affected),
20.1.2 (affected),
19.2.929 (affected),
19.2.31 (affected),
20.3.2 (affected),
19.2.32 (affected),
20.3.2.1 (affected),
20.3.2.1_927 (affected),
18.4.6 (affected),
20.3.2_928 (affected),
20.3.2_929 (affected),
20.4.1.0.1 (affected),
20.3.2.1_930 (affected),
19.2.4 (affected),
20.5.0.1.1 (affected),
20.4.1.1 (affected),
20.3.3 (affected),
19.2.4.0.1 (affected),
20.3.2_937 (affected),
20.5.1 (affected),
20.1.3 (affected),
20.3.3.0.4 (affected),
20.3.3.1.2 (affected),
20.3.3.1.1 (affected),
20.4.1.2 (affected),
20.3.3.0.2 (affected),
20.4.1.1.5 (affected),
20.4.1.0.02 (affected),
20.3.3.1.7 (affected),
20.3.3.1.5 (affected),
20.5.1.0.1 (affected),
20.3.3.1.10 (affected),
20.3.3.0.8 (affected),
20.4.2 (affected),
20.3.4 (affected),
20.3.3.0.14 (affected),
19.2.4.0.8 (affected),
19.2.4.0.9 (affected),
20.3.4.0.1 (affected),
20.3.2.0.5 (affected),
20.5.1.0.2 (affected),
20.6.1.1 (affected),
20.6.0.18.3 (affected),
20.3.2.0.6 (affected),
20.6.0.18.4 (affected),
20.4.2.0.2 (affected),
20.3.3.0.16 (affected),
20.6.1.0.1 (affected),
20.3.4.0.6 (affected),
20.7.1EFT2 (affected),
20.3.4.0.9 (affected),
20.3.4.0.11 (affected),
20.3.3.0.18 (affected),
20.6.2.1 (affected),
20.3.4.1 (affected),
20.4.2.1 (affected),
20.4.2.1.1 (affected),
20.3.4.1.1 (affected),
20.3.813 (affected),
20.3.4.0.19 (affected),
20.4.2.2.1 (affected),
20.5.1.2 (affected),
20.3.814 (affected),
20.4.2.2 (affected),
20.6.2.2 (affected),
20.3.4.2.1 (affected),
20.3.4.1.2 (affected),
20.3.4.0.20 (affected),
20.6.2.2.3 (affected),
20.4.2.2.2 (affected),
20.6.2.0.4 (affected),
20.3.4.0.24 (affected),
20.6.2.2.7 (affected),
20.3.4.2.2 (affected),
20.4.2.2.4 (affected),
20.3.5.0.8 (affected),
20.3.5.0.9 (affected),
20.3.5.0.7 (affected),
20.6.3.0.2 (affected),
20.9.1EFT2 (affected),
20.3.6 (affected),
20.3.7 (affected),
20.4.2.3 (affected),
20.3.5.1 (affected),
20.3.4.3 (affected),
20.3.3.2 (affected),
20.3.7.1 (affected),
20.3.4.0.25 (affected),
20.6.2.2.4 (affected),
20.6.1.2 (affected),
20.1.3.1 (affected),
20.6.5.1.4 (affected),
20.3.8 (affected),
20.12.501 (affected),
26.1.1 (affected)
|
— |
Affected products — CPE 2.3 (2) NVD
NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.
cpe:2.3:a:cisco:catalyst_sd-wan_manager:*:*:*:*:*:*:*:*cpe:2.3:a:cisco:catalyst_sd-wan_manager:20.12.6:*:*:*:*:*:*:*
Vendor references (1)
References embedded in the original CVE record by the assigning CNA.
Web references (5)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- http://cwe.mitre.org/data/definitions/257.html rapid7:cwe.mitre.org
- https://attackerkb.com/topics/CVE-2026-20128 rapid7:attackerkb.com
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-8676 rapid7:euvd.enisa.europa.eu
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v rapid7:sec.cloudapps.cisco.com
- https://www.cve.org/CVERecord?id=CVE-2026-20128 rapid7:www.cve.org
NVD-tagged references (2)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v psirt@cisco.com Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20128 134c704f-9b21-4f2e-91b3-4a467353bcc0 US Government Resource
Indicators (2)
IOCs linked to the auto-promoted Threat row.
| Type | Value | VirusTotal | Attached |
|---|---|---|---|
| cve |
CVE-2026-20128
|
no local data | 2026-05-14 02:58 UTC |
| cwe |
CWE-257
|
no local data | 2026-05-14 02:58 UTC |
Remediations (9)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:zecurit.com
Get the complete breakdown of Microsoft's May 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .
2026-05-14 08:18 UTC -
web:portal.msrc.microsoft.com
The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.
2026-05-14 08:18 UTC -
web:vulert.com
Microsoft's May 2026 Patch Tuesday fixes 138 vulnerabilities, including critical Windows DNS and Netlogon RCE flaws. Learn the risks, key CVEs , mitigation steps, and how Vulert can help.
2026-05-14 08:18 UTC -
web:cybersecuritynews.com
Microsoft's May 2026 Patch Tuesday lands with a heavy enterprise focus, fixing 120 vulnerabilities across Windows, Office, Azure, developer tools, and Microsoft 365 apps, including 29 remote code execution (RCE) flaws rated Critical.
2026-05-14 08:18 UTC -
web:www.forbes.com
As security researchers warn about a dangerous Microsoft Windows update that isn't legitimate, users must pay close attention to what they are actually downloading.
2026-05-14 08:18 UTC -
web:www.linkedin.com
Microsoft has released its May 2026 Patch Tuesday security updates, addressing more than 130 vulnerabilities across its software ecosystem, including Windows, Microsoft Office, SharePoint Server ...
2026-05-14 08:18 UTC -
web:www.malwarebytes.com
May's Patch Tuesday may not be the giant release many expected, but there are still plenty of important fixes that shouldn't be ignored.
2026-05-14 08:18 UTC -
web:www.secpod.com
The second Tuesday of May 2026 marked another major security update release from Microsoft, addressing a broad range of vulnerabilities across Windows, Microsoft Office, SharePoint, Dynamics 365, .NET, DNS Client, and other core enterprise components. While this month's Patch Tuesday did not include any actively exploited or publicly disclosed zero-day vulnerabilities, the release still ...
2026-05-14 08:18 UTC -
CISA KEV
Please adhere to CISA’s guidelines to assess exposure and mitigate risks associated with Cisco SD-WAN devices as outlines in CISA’s Emergency Directive 26-03 (URL listed below in Notes) and CISA’s “Hunt & Hardening Guidance for Cisco SD-WAN Devices (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available. Due date: 2026-04-23 Known ransomware campaign use: Unknown
2026-05-14 01:13 UTC
AI Forensic Analysis
Only Available for Registered Users. Sign in to view.
Raw JSON
The full cvelistV5 record. Download as CVE-2026-20128.json.
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-20128",
"options": [
{
"Exploitation": "active"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-02-25T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
},
{
"other": {
"content": {
"dateAdded": "2026-04-20",
"reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20128"
},
"type": "kev"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-04-21T03:55:31.648Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"government-resource"
],
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-20128"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-04-20T00:00:00.000Z",
"value": "CVE-2026-20128 added to CISA KEV"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"product": "Cisco Catalyst SD-WAN Manager",
"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "20.1.12"
},
{
"status": "affected",
"version": "19.2.1"
},
{
"status": "affected",
"version": "18.4.4"
},
{
"status": "affected",
"version": "18.4.5"
},
{
"status": "affected",
"version": "20.1.1.1"
},
{
"status": "affected",
"version": "20.1.1"
},
{
"status": "affected",
"version": "19.3.0"
},
{
"status": "affected",
"version": "19.2.2"
},
{
"status": "affected",
"version": "19.2.099"
},
{
"status": "affected",
"version": "18.3.6"
},
{
"status": "affected",
"version": "18.3.7"
},
{
"status": "affected",
"version": "19.2.0"
},
{
"status": "affected",
"version": "18.3.8"
},
{
"status": "affected",
"version": "19.0.0"
},
{
"status": "affected",
"version": "19.1.0"
},
{
"status": "affected",
"version": "18.4.302"
},
{
"status": "affected",
"version": "18.4.303"
},
{
"status": "affected",
"version": "19.2.097"
},
{
"status": "affected",
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{
"status": "affected",
"version": "20.3.4.0.25"
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{
"status": "affected",
"version": "20.6.1.2"
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"status": "affected",
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"status": "affected",
"version": "20.6.5.1.4"
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]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the Data Collection Agent (DCA) feature of Cisco Catalyst SD-WAN Manager could allow an unauthenticated, remote attacker to gain DCA user privileges on an affected system.\r\n\r\nThis vulnerability is due to the presence of a credential file for the DCA user on an affected system. An attacker could exploit this vulnerability by sending a crafted HTTP request and reading the file that contains the DCA password from that affected system. A successful exploit could allow the attacker to access another affected system and gain DCA user privileges.\r\nNote: Cisco Catalyst SD-WAN Manager releases 20.18 and later are not affected by this vulnerability."
}
],
"exploits": [
{
"lang": "en",
"value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in CVE-2026-20133, CVE-2026-20126, and CVE-2026-20129.\r\n\r\nIn March 2026, the Cisco PSIRT became aware of active exploitation of the vulnerabilities that are described in CVE-2026-20128 and CVE-2026-20122 only. The vulnerabilities that are described in the other CVEs in this advisory are not known to have been compromised. Cisco strongly recommends that customers upgrade to a fixed software release to remediate these vulnerabilities."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
},
"format": "cvssV3_1"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-257",
"description": "Storing Passwords in a Recoverable Format",
"lang": "en",
"type": "cwe"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-20T21:47:33.415Z",
"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"shortName": "cisco"
},
"references": [
{
"name": "cisco-sa-sdwan-authbp-qwCX8D4v",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-authbp-qwCX8D4v"
}
],
"source": {
"advisory": "cisco-sa-sdwan-authbp-qwCX8D4v",
"defects": [
"CSCws33585"
],
"discovery": "INTERNAL"
},
"title": "Cisco Catalyst SD-WAN Manager Information Disclosure Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"assignerShortName": "cisco",
"cveId": "CVE-2026-20128",
"datePublished": "2026-02-25T16:14:12.353Z",
"dateReserved": "2025-10-08T11:59:15.379Z",
"dateUpdated": "2026-04-21T03:55:31.648Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}