What is the CVSS score of CVE-2025-13639?

CVE-2025-13639 has a contested CVSS base score of 8.1 from a third party (e.g. CISA-ADP), while the vendor rates it High. vuln.today uses the vendor rating as authoritative.

Which versions of Ubuntu are affected by CVE-2025-13639?

A high-severity vulnerability in Google Chrome's WebRTC implementation (CVE-2025-13639) allows remote attackers to read and write arbitrary data through malicious web pages, potentially exposing…. A patch is available.

How to fix or mitigate CVE-2025-13639?

Within 24 hours: Issue security alert to all users advising against visiting untrusted websites and enable Chrome's Enhanced Safe Browsing mode; audit user populations with high-risk Chrome exposure. Within 7 days: Deploy network-level protections including WebRTC filtering at the firewall/proxy and consider disabling WebRTC in managed Chrome deployments via Group Policy; establish monitoring for exploitation attempts. Within 30 days: Prepare rapid deployment procedures for the patch when released; evaluate transition to alternative browsers for high-risk user groups if patch availability is delayed beyond 30 days.

Ubuntu CVE-2025-13639

EUVD-2025-200312 HIGH

Cross-site Scripting (XSS) (CWE-79)

2025-12-02 chrome-cve-admin@google.com

Google XSS Ubuntu Debian Chrome Red Hat Suse

High

Disputed · 8.1 NVD

Severity by source

Sources disagree (Low–High)

NVD PRIMARY

8.1 HIGH

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Ubuntu

MEDIUM

qualitative

SUSE

HIGH

qualitative

Red Hat

4.3 LOW

qualitative

vuln.today treats the vendor’s rating as authoritative. A higher third-party CVSS (e.g. CISA-ADP) is shown for transparency but does not drive the headline severity.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

Patch released

Mar 31, 2026 - 21:13 nvd

Patch available

EUVD ID Assigned

Mar 15, 2026 - 14:04 euvd

EUVD-2025-200312

Analysis Generated

Mar 15, 2026 - 14:04 vuln.today

CVE Published

Dec 02, 2025 - 19:15 nvd

HIGH 8.1

DescriptionCVE.org

Inappropriate implementation in WebRTC in Google Chrome prior to 143.0.7499.41 allowed a remote attacker to perform arbitrary read/write via a crafted HTML page. (Chromium security severity: Low)

Analysis

Inappropriate implementation in WebRTC in Google Chrome prior to 143.0.7499.41 allowed a remote attacker to perform arbitrary read/write via a crafted HTML page. (Chromium security severity: Low)

Technical ContextAI

Cross-site scripting (XSS) allows injection of client-side scripts into web pages viewed by other users due to insufficient output encoding.

RemediationAI

Encode all user-supplied output contextually (HTML, JS, URL). Implement Content Security Policy (CSP) headers. Use HTTPOnly and Secure cookie flags.

More in Chrome

View all

CVE-2015-5122 CRITICAL Emergency POC

9.8 Jul 14

Use-after-free vulnerability in the DisplayObject class in the ActionScript 3 (AS3) implementation in Adobe Flash Player

CVE-2016-5198 HIGH Act Now POC

8.8 Jan 19

V8 in Google Chrome prior to 54.0.2840.90 for Linux, and 54.0.2840.85 for Android, and 54.0.2840.87 for Windows and Mac

CVE-2017-5070 HIGH Act Now POC

8.8 Oct 27

Type confusion in V8 in Google Chrome prior to 59.0.3071.86 for Linux, Windows, and Mac, and 59.0.3071.92 for Android, a

CVE-2016-1646 HIGH Act Now POC

8.8 Mar 29

The Array.prototype.concat implementation in builtins.cc in Google V8, as used in Google Chrome before 49.0.2623.108, do

CVE-2013-0758 CRITICAL Emergency POC

9.3 Jan 13

Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderb

CVE-2017-5030 HIGH Act Now POC

8.8 Apr 24

Incorrect handling of complex species in V8 in Google Chrome prior to 57.0.2987.98 for Linux, Windows, and Mac and 57.0.

CVE-2012-3993 CRITICAL Emergency POC

9.3 Oct 10

The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbi

CVE-2017-3823 HIGH Act Now POC

8.8 Feb 01

An issue was discovered in the Cisco WebEx Extension before 1.0.7 on Google Chrome, the ActiveTouch General Plugin Conta

CVE-2014-8636 HIGH Act Now POC

7.5 Jan 14

The XrayWrapper implementation in Mozilla Firefox before 35.0 and SeaMonkey before 2.32 does not properly interact with

CVE-2013-0757 CRITICAL Emergency POC

9.3 Jan 13

The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.2, Thunderbi

CVE-2014-1510 CRITICAL Emergency POC

9.8 Mar 19

The Web IDL implementation in Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and Se

CVE-2015-5123 CRITICAL Emergency

9.8 Jul 14

Use-after-free vulnerability in the BitmapData class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13

Same weakness CWE-79 – Cross-site Scripting (XSS)

View all

CVE-2013-7389 MEDIUM POC

4.3

CVE-2021-25299 MEDIUM POC

6.1

CVE-2014-2120 MEDIUM

6.1

CVE-2023-40000 HIGH POC

8.3

CVE-2016-8581 MEDIUM POC

6.1

CVE-2013-5223 MEDIUM POC

5.4

CVE-2025-52367 MEDIUM POC

5.4

CVE-2015-0072 MEDIUM POC

4.3

Same technique XSS

View all

CVE-2017-9248 CRITICAL POC

9.8

CVE-2013-1710 CRITICAL POC

10.0

CVE-2013-7389 MEDIUM POC

4.3

CVE-2021-25299 MEDIUM POC

6.1

CVE-2014-2120 MEDIUM

6.1

CVE-2023-40000 HIGH POC

8.3

CVE-2024-52875 HIGH POC

8.8

CVE-2016-8581 MEDIUM POC

6.1

Vendor StatusVendor

Ubuntu

Priority: Medium

chromium-browser

Release	Status	Version
jammy	not-affected	code not present
noble	not-affected	code not present
plucky	not-affected	code not present
questing	not-affected	code not present
upstream	released	-

Debian

chromium

Release	Status	Fixed Version	Urgency
bullseye (security), bullseye	vulnerable	120.0.6099.224-1~deb11u1	-
bookworm	fixed	143.0.7499.40-1~deb12u1	-
bookworm (security)	fixed	146.0.7680.71-1~deb12u1	-
trixie	fixed	143.0.7499.40-1~deb13u1	-
trixie (security)	fixed	146.0.7680.71-1~deb13u1	-
forky	fixed	146.0.7680.71-1	-
sid	fixed	146.0.7680.80-1	-
bullseye	fixed	(unfixed)	end-of-life
(unstable)	fixed	143.0.7499.40-1	-

DSA-6072-1

SUSE

Severity: High

Product	Status
SUSE Package Hub 15 SP6	Fixed
openSUSE Leap 15.6	Fixed
openSUSE Tumbleweed	Fixed
SUSE Package Hub 15 SP6	Fixed

CVE-2025-13639 vulnerability details – vuln.today

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Ubuntu CVE-2025-13639

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

Analysis

Technical ContextAI

RemediationAI

More in Chrome

Same weakness CWE-79 – Cross-site Scripting (XSS)

Same technique XSS

Vendor StatusVendor

Ubuntu

Debian

SUSE

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External POC / Exploit Code