CVE-2025-27851
📛 CVE Title
CVE-2025-27851
Description
The locally served web site on the Garmin WDU (v1 1.4.6 and v2 5.0) allows a cross-site origin WebSocket hijacking attack. Among other uses, the WDU utilizes WebSockets to control settings, including administrative settings. This allows a network attacker to take full control of a WDU. To initiate an exploit of this vulnerability, the victim must (1) be utilizing a web browser on a multihomed host that has local interfaces on the Garmin Marine Network as well as another network, and (2) access a malicious third party website created by the attacker.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- mitre
- CVSS severity
- critical
- CVSS score
- 9.3 / 10
- CVSS vector
AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N- Effective score
- 9.3 / 10 CRITICAL source: CNA overview
- CWE(s)
- —
- Reserved
- 2025-03-09
- Published
- 2026-05-13 02:00 UTC
- Last updated
- 2026-05-14 17:35 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2025/27xxx/CVE-2025-27851.json
- Linked Threat
- CVE-2025-27851 — CVE-2025-27851
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
- 2026-05-13 21:16:41 UTC
- NVD last modified
- 2026-06-17 09:04:20 UTC
- NVD CVSS v3.1
- 9.3 / 10 CRITICAL source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
- NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N- Exploitability subscore
- 2.8 / 10
- Impact subscore
- 5.8 / 10
- EPSS score
- 0.0014 (probability of exploitation in next 30 days)
- EPSS percentile
- 4.24% vs all CVEs — higher = more likely to be exploited, as of 2026-07-27
NVD-assigned CWE(s):
CWE-352
(differs from the CNA list above)
NVD / KEV / EPSS data refreshed 2026-07-27 15:57 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-2025-209829 - Assigner
- mitre
- Published
- May 13, 2026, 12:00:00 AM
- Updated
- May 14, 2026, 3:35:05 PM
- EUVD base score (CVSS 3.1)
-
9.3 / 10
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N - EUVD-reported EPSS
- 0.0200
- Vendors
- n/a
- Products
-
n/a (n/a)
ENISA description: The locally served web site on the Garmin WDU (v1 1.4.6 and v2 5.0) allows a cross-site origin WebSocket hijacking attack. Among other uses, the WDU utilizes WebSockets to control settings, including administrative settings. This allows a network attacker to take full control of a WDU. To initiate an exploit of this vulnerability, the victim must (1) be utilizing a web browser on a multihomed host that has local interfaces on the Garmin Marine Network as well as another network, and (2) access a malicious third party website created by the attacker.
EUVD references (2)
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| n/a | n/a |
n/a (affected)
|
— |
Affected products — CPE 2.3 (4) 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:garmin:empirbus_wireless_display_unit_firmware:1.4.6:*:*:*:*:*:*:*cpe:2.3:h:garmin:empirbus_wireless_display_unit:v1:*:*:*:*:*:*:*cpe:2.3:o:garmin:empirbus_wireless_display_unit_firmware:5.00:*:*:*:*:*:*:*cpe:2.3:h:garmin:empirbus_wireless_display_unit:v2:*:*:*:*:*:*:*
Vendor references (2)
References embedded in the original CVE record by the assigning CNA.
MITRE references (2) cveawg.mitre.org
Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.
Web references (3)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- https://nvd.nist.gov/vuln/detail/CVE-2025-27851 tenable:nvd.nist.gov
- https://www.cve.org/CVERecord?id=CVE-2025-27851 tenable:www.cve.org
- https://www.first.org/epss/ tenable:www.first.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://garmin.com cve@mitre.org Product
- https://www8.garmin.com/support/ch.jsp?product=010-02642-00 cve@mitre.org Release Notes
Remediations (18)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:blog.talosintelligence.com
Microsoft has released its monthly security update for August 2025 , which includes 111 vulnerabilities affecting a range of products, including 13 that Microsoft marked as "critical".
2026-05-23 20:56 UTC -
web:cisa.gov
Update (08/12/ 2025 ): CISA has updated this alert to provide clarification on identifying Exchange Servers on an organization's networks and provided further guidance on running the Microsoft Exchange Health Checker. Update (08/07/ 2025 ): CISA issued Emergency Directive (ED) 25-02: Mitigate Microsoft Exchange Vulnerability in response to CVE - 2025 -53786
2026-05-23 20:56 UTC -
web:cyberpress.org
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added two actively exploited Microsoft Defender vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, issuing an urgent remediation directive for federal agencies with a due date of June 3, 2026.
2026-05-23 20:56 UTC -
web:krebsonsecurity.com
Microsoft Corp. today issued security updates to fix more than 80 vulnerabilities in its Windows operating systems and software. There are no known "zero-day" or actively exploited ...
2026-05-23 20:56 UTC -
web:nvd.nist.gov
An official website of the United States government Here's how you know
2026-05-23 20:56 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.
2026-05-23 20:56 UTC -
web:www.bugcrowd.com
Vulnerability mitigation is typically considered a temporary or interim solution. While mitigation measures can reduce the immediate risk associated with vulnerabilities, they may not provide a permanent fix . Organizations should aim to prioritize and plan for complete vulnerability remediation whenever feasible and allocate resources accordingly.
2026-05-23 20:56 UTC -
web:www.lansweeper.com
Which vulnerabilities, issues, and other things did Microsoft update? Discover what's new using Lansweeper's Patch Tuesday August 2025 summary.
2026-05-23 20:56 UTC -
web:www.secure.com
Learn the difference between vulnerability remediation and mitigation , and how a risk-based strategy can strengthen your security posture.
2026-05-23 20:56 UTC -
web:zecurit.com
Get the complete breakdown of Microsoft's May 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .
2026-05-23 20:56 UTC -
web:blog.talosintelligence.com
Microsoft Patch Tuesday for October 2025 — Snort rules and prominent vulnerabilities Microsoft has released its monthly security update for October 2025 , addressing 175 Microsoft CVEs and 21 non-Microsoft CVEs . Among these, 17 vulnerabilities are considered critical and 11 are flagged as important and considered more likely to be exploited.
2026-05-26 02:53 UTC -
web:gbhackers.com
Microsoft has rolled out its August 2025 Patch Tuesday fixes, addressing a total of 107 vulnerabilities across its ecosystem.
2026-05-26 02:53 UTC -
web:kimiyoya.com
Microsoft's August 2025 Patch Tuesday fixes 107 vulnerabilities, including an actively exploited zero-day. Windows 11 24H2 also gets new features like AI Agent and Quick Machine Recovery. See details, precautions, and systems that may benefit from delaying the update.
2026-05-26 02:53 UTC -
web:msrc.microsoft.com
The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.
2026-05-26 02:53 UTC -
web:nvd.nist.gov
An official website of the United States government Here's how you know
2026-05-26 02:53 UTC -
web:www.cisa.gov
For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild. Organizations should use the KEV catalog as an input to their vulnerability management prioritization framework.
2026-05-26 02:53 UTC -
web:www.crowdstrike.com
Microsoft has released security updates for 107 vulnerabilities, including one publicly disclosed zero-day and 13 critical, in its August 2025 Patch Tuesday rollout.
2026-05-26 02:53 UTC -
web:www.techradar.com
Pro Security Microsoft's latest major patch fixes a serious zero-day flaw, and a host of other issues - so update now News By Sead Fadilpašić published August 13, 2025
2026-05-26 02:53 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2025-27851.json.
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"scope": "CHANGED",
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