CVE-2026-32202
📛 CVE Title
Windows Shell Spoofing Vulnerability
Description
Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- microsoft
- CVSS severity
- MEDIUM
- CVSS score
- 4.3 / 10
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:F/RL:O/RC:C- Effective score
- 4.3 / 10 MEDIUM source: CNA overview
- MSRC score
- 4.3 / 10 MEDIUM MS rating: Important · Spoofing
- CWE(s)
-
CWE-693 - Reserved
- 2026-03-11
- Published
- 2026-04-14 07:00 UTC
- Last updated
- 2026-07-28 07:00 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/32xxx/CVE-2026-32202.json
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
- Microsoft Windows Protection Mechanism Failure Vulnerability
- Vendor / project
- Microsoft
- Product
- Windows
- Date added to KEV
- 2026-04-28
- Remediation due
- 2026-05-12
- Required action
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- Ransomware campaign use
- Unknown
- CISA notes
- https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-32202 ; https://nvd.nist.gov/vuln/detail/CVE-2026-32202
- 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
- 2026-04-14 18:17:27 UTC
- NVD last modified
- 2026-04-28 21:47:02 UTC
- NVD CVSS v3.1
- 4.3 / 10 MEDIUM source: secure@microsoft.com
- NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N- Exploitability subscore
- 2.8 / 10
- Impact subscore
- 1.4 / 10
- EPSS score
- 0.1296 (probability of exploitation in next 30 days)
- EPSS percentile
- 94.16% vs all CVEs — higher = more likely to be exploited, as of 2026-05-25
NVD / KEV / EPSS data refreshed 2026-05-25 14:36 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-2026-22589 - Assigner
- microsoft
- Published
- Apr 14, 2026, 4:57:36 PM
- Updated
- May 26, 2026, 5:53:29 PM
- EUVD base score (CVSS 3.1)
-
4.3 / 10
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:F/RL:O/RC:C - EUVD-reported EPSS
- 56.8200
- Vendors
- Microsoft
- Products
-
Windows Server 2016 (10.0.14393.0 <10.0.14393.9060)Windows 10 Version 1809 (10.0.17763.0 <10.0.17763.8644)Windows Server 2012 R2 (6.3.9600.0 <6.3.9600.23132)Windows 11 version 26H1 (10.0.28000.0 <10.0.28000.1836)Windows 10 Version 1607 (10.0.14393.0 <10.0.14393.9060)Windows Server 2019 (10.0.17763.0 <10.0.17763.8644)Windows 11 Version 23H2 (10.0.22631.0 <10.0.22631.6936)Windows Server 2022, 23H2 Edition (Server Core installation) (10.0.25398.0 <10.0.25398.2274)Windows Server 2012 (6.2.9200.0 <6.2.9200.26026)Windows 10 Version 21H2 (10.0.19044.0 <10.0.19044.7184)Windows 11 Version 25H2 (10.0.26200.0 <10.0.26200.8246)Windows 11 Version 24H2 (10.0.26100.0 <10.0.26100.32690)Windows Server 2019 (Server Core installation) (10.0.17763.0 <10.0.17763.8644)Windows 10 Version 22H2 (10.0.19045.0 <10.0.19045.7184)Windows Server 2025 (Server Core installation) (10.0.26100.0 <10.0.26100.32690)Windows Server 2016 (Server Core installation) (10.0.14393.0 <10.0.14393.9060)Windows 11 version 22H3 (10.0.22631.0 <10.0.22631.6936)Windows Server 2012 R2 (Server Core installation) (6.3.9600.0 <6.3.9600.23132)Windows Server 2025 (10.0.26100.0 <10.0.26100.32690)Windows Server 2022 (10.0.20348.0 <10.0.20348.5020)Windows Server 2012 (Server Core installation) (6.2.9200.0 <6.2.9200.26026)Windows 11 Version 24H2 (10.0.26100.0 <10.0.26100.8246)
- Aliases
-
GHSA-x62h-w968-3v9v
ENISA description: Protection mechanism failure in Windows Shell allows an unauthorized attacker to perform spoofing over a network.
EUVD references (1)
Microsoft Security Response Center MSRC
Microsoft's vendor-authoritative record from the Security Update Guide — its own CVSS score, impact, severity rating, exploit assessment, and KB-article fixes. Refreshed 2026-07-29 03:00 UTC (source: CVRF).
- MS severity
- Important
- Impact
- Spoofing
- MS CVSS base score
- 4.3 / 10 (temporal 4.0)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:F/RL:O/RC:C - Exploit assessment
- Publicly Disclosed:No;Exploited:Yes;Latest Software Release:Exploitation Detected
- Release
- 2026-Apr
Microsoft remediations / KB articles (20)
- 5099538 — Vendor Fix / Security Update (fixed build 10.0.17763.9020)
- https://support.microsoft.com/help/5099538 — None Available / 5099538
- 5099540 — Vendor Fix / Security Update (fixed build 10.0.20348.5386)
- https://support.microsoft.com/help/5099540 — None Available / 5099540
- 5099539 — Vendor Fix / Security Update (fixed build 10.0.19044.7548)
- https://support.microsoft.com/help/5099539 — None Available / 5099539
- 5099536 — Vendor Fix / Security Update (fixed build 10.0.26100.33158)
- https://support.microsoft.com/help/5099536 — None Available / 5099536
- 5101650 — Vendor Fix / Security Update (fixed build 10.0.26200.8875)
- https://support.microsoft.com/help/5101650 — None Available / 5101650
- 5099414 — Vendor Fix / Security Update (fixed build 10.0.22631.7376)
- https://support.microsoft.com/help/5099414 — None Available / 5099414
- 5099535 — Vendor Fix / Security Update (fixed build 10.0.14393.9339)
- https://support.microsoft.com/help/5099535 — None Available / 5099535
- 5099445 — Vendor Fix / Monthly Rollup (fixed build 6.2.9200.26226)
- https://support.microsoft.com/help/5099445 — None Available / 5099445
- 5099444 — Vendor Fix / Monthly Rollup (fixed build 6.3.9600.23291)
- https://support.microsoft.com/help/5099444 — None Available / 5099444
- 5101649 — Vendor Fix / Security Update (fixed build 10.0.28000.2525)
- https://support.microsoft.com/help/5101649 — None Available / 5101649
Microsoft FAQ (2)
According to the CVSS metrics, successful exploitation of this vulnerability could lead to some loss of confidentiality (C:L),but lead to no loss of availability (A:N) and integrity (I:N)? What does that mean for this vulnerability?
An attacker who successfully exploited the vulnerability could view some sensitive information (Confidentiality) but not all resources within the impacted component may be divulged to the attacker. The attacker cannot make changes to disclosed information (Integrity) or limit access to the resource (Availability).
According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?
An attacker would have to send the victim a malicious file that the victim would have to execute.
Affected products (21)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| Microsoft | Windows 10 Version 1607 |
10.0.14393.0 (affected)
|
32-bit Systems, x64-based Systems |
| Microsoft | Windows 10 Version 1809 |
10.0.17763.0 (affected)
|
32-bit Systems, x64-based Systems |
| Microsoft | Windows 10 Version 21H2 |
10.0.19044.0 (affected)
|
32-bit Systems, ARM64-based Systems, x64-based Systems |
| Microsoft | Windows 10 Version 22H2 |
10.0.19045.0 (affected)
|
32-bit Systems, ARM64-based Systems, x64-based Systems |
| Microsoft | Windows 11 version 22H3 |
10.0.22631.0 (affected)
|
ARM64-based Systems |
| Microsoft | Windows 11 Version 23H2 |
10.0.22631.0 (affected)
|
x64-based Systems |
| Microsoft | Windows 11 Version 24H2 |
10.0.26100.0 (affected)
|
ARM64-based Systems, x64-based Systems |
| Microsoft | Windows 11 Version 25H2 |
10.0.26200.0 (affected)
|
ARM64-based Systems, x64-based Systems |
| Microsoft | Windows 11 version 26H1 |
10.0.28000.0 (affected)
|
ARM64-based Systems, x64-based Systems |
| Microsoft | Windows Server 2012 |
6.2.9200.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2012 (Server Core installation) |
6.2.9200.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2012 R2 |
6.3.9600.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2012 R2 (Server Core installation) |
6.3.9600.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2016 |
10.0.14393.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2016 (Server Core installation) |
10.0.14393.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2019 |
10.0.17763.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2019 (Server Core installation) |
10.0.17763.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2022 |
10.0.20348.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) |
10.0.25398.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2025 |
10.0.26100.0 (affected)
|
x64-based Systems |
| Microsoft | Windows Server 2025 (Server Core installation) |
10.0.26100.0 (affected)
|
x64-based Systems |
Affected products — CPE 2.3 (25) 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:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:*cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:*cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:*cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:*cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:*cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:*cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*
Vendor references (1)
References embedded in the original CVE record by the assigning CNA.
- Windows Shell Spoofing Vulnerability vendor-advisorypatch
Web references (48)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- None Available msrc
- None Available msrc
- None Available msrc
- 5099414 msrc
- 5099444 msrc
- 5099445 msrc
- 5099535 msrc
- 5099536 msrc
- 5099538 msrc
- 5099539 msrc
- 5099540 msrc
- 5101649 msrc
- None Available msrc
- 5101650 msrc
- None Available msrc
- None Available msrc
- None Available msrc
- None Available msrc
- None Available msrc
- None Available msrc
- None Available msrc
- None Available msrc
- None Available msrc
- None Available msrc
- 5082052 msrc
- 5082060 msrc
- 5082063 msrc
- 5082123 msrc
- 5082126 msrc
- 5082127 msrc
- 5082142 msrc
- 5082198 msrc
- 5082200 msrc
- 5083768 msrc
- 5083769 msrc
- MSRC update guide: CVE-2026-32202 msrc
- None Available msrc
- None Available msrc
- None Available msrc
- None Available msrc
- None Available msrc
- None Available msrc
- None Available msrc
- http://cwe.mitre.org/data/definitions/693.html rapid7:cwe.mitre.org
- https://security.alpinelinux.org/vuln/CVE-2026-32202 rapid7:security.alpinelinux.org
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-22589 rapid7:euvd.enisa.europa.eu
- https://attackerkb.com/topics/CVE-2026-32202 rapid7:attackerkb.com
- https://www.cve.org/CVERecord?id=CVE-2026-32202 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://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32202 secure@microsoft.com Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-32202 134c704f-9b21-4f2e-91b3-4a467353bcc0 US Government ResourceThird Party Advisory
Remediations (10)
-
web:app.opencve.io
Remediation No vendor fix or workaround currently provided. OpenCVE Recommended Actions Apply any Microsoft security update that addresses CVE-2026-32202 , obtained through Windows Update or the Microsoft Update Catalog, as soon as it is released.
2026-05-23 20:05 UTC -
web:msrc.microsoft.com
Security Update Guide - Microsoft Security Response Center
2026-05-23 20:05 UTC -
web:nvd.nist.gov
Information Technology Laboratory National Vulnerability Database Vulnerabilities
2026-05-23 20:05 UTC -
web:thehackernews.com
CVE-2026-32202 actively exploited after April 27 advisory fix , exposing NTLMv2 hashes via zero-click SMB authentication.
2026-05-23 20:05 UTC -
web:windowsforum.com
The Microsoft Security Response Center's entry for CVE-2026-32202 points to a Windows Shell spoofing vulnerability, but the public-facing description is doing something just as important as naming the flaw: it is signaling how much confidence Microsoft has in the issue and how much technical detail is currently available to attackers. In Microsoft's vulnerability taxonomy, that confidence ...
2026-05-23 20:05 UTC -
web:windowsreport.com
Microsoft has released an urgent fix for a Windows Shell vulnerability that is now actively exploited in the wild, raising concerns despite its relatively low severity score. The flaw, tracked as CVE-2026-32202 , has been added to the Known Exploited Vulnerabilities catalog by the Cybersecurity and ...
2026-05-23 20:05 UTC -
web:www.bleepingcomputer.com
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has ordered federal agencies to secure their Windows systems against a vulnerability exploited in zero-day attacks.
2026-05-23 20:05 UTC -
web:www.decryptiondigest.com
CVE-2026-32202 Windows Shell spoofing lets APT28 steal NTLMv2 hashes via zero-click LNK files. Affected versions, IOCs, and patch guidance inside.
2026-05-23 20:05 UTC -
web:www.notebookcheck.net
CISA has ordered federal agencies to patch CVE-2026-32202 , a zero-click Windows Shell flaw left open by an incomplete February fix now confirmed as exploited.
2026-05-23 20:05 UTC -
web:www.sentinelone.com
CVE-2026-32202 is an authentication bypass vulnerability in Windows Shell. Learn about its impact, affected versions, and mitigation methods.
2026-05-23 20:05 UTC
AI Forensic Analysis
Only Available for Registered Users. Sign in to view.
Raw JSON
The full cvelistV5 record. Download as CVE-2026-32202.json.
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"product": "Windows 10 Version 1607",
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"product": "Windows Server 2012",
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"platforms": [
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"product": "Windows Server 2016",
"vendor": "Microsoft",
"versions": [
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},
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"platforms": [
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"product": "Windows Server 2016 (Server Core installation)",
"vendor": "Microsoft",
"versions": [
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},
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"platforms": [
"x64-based Systems"
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"product": "Windows Server 2019",
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"versions": [
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"product": "Windows Server 2019 (Server Core installation)",
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"product": "Windows Server 2022",
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