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Chrome CVE-2025-6191

| EUVDEUVD-2025-18663 HIGH
External Control of Assumed-Immutable Web Parameter (CWE-472)
2025-06-18 chrome-cve-admin@google.com
8.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
8.8 HIGH
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM
qualitative
SUSE
HIGH
qualitative

Primary rating from NVD.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
Patch released
Mar 31, 2026 - 21:13 nvd
Patch available
EUVD ID Assigned
Mar 14, 2026 - 22:49 euvd
EUVD-2025-18663
Analysis Generated
Mar 14, 2026 - 22:49 vuln.today
CVE Published
Jun 18, 2025 - 19:15 nvd
HIGH 8.8

DescriptionCVE.org

Integer overflow in V8 in Google Chrome prior to 137.0.7151.119 allowed a remote attacker to potentially perform out of bounds memory access via a crafted HTML page. (Chromium security severity: High)

AnalysisAI

High-severity integer overflow vulnerability in the V8 JavaScript engine within Google Chrome that enables out-of-bounds memory access through a maliciously crafted HTML page. The vulnerability affects Chrome versions prior to 137.0.7151.119 and requires only user interaction (clicking a link, visiting a page) with no special privileges needed. Successful exploitation allows attackers to read sensitive data, modify content, or crash the browser with a CVSS score of 8.8.

Technical ContextAI

This vulnerability resides in V8 (Chromium's JavaScript engine), where integer overflow conditions can occur during memory operations. CWE-472 (Integer Overflow to Buffer Overflow) indicates that an integer calculation wraps or exceeds its maximum value, subsequently used in memory allocation or boundary checks. When V8 processes JavaScript in a crafted HTML page, an attacker can manipulate numeric values to cause an integer overflow, resulting in undersized memory allocations. This subsequently leads to out-of-bounds memory access, allowing reads or writes beyond allocated buffer boundaries. Affected CPE: cpe:2.7.a:google:chrome:*:*:*:*:*:*:*:* (versions <137.0.7151.119) and Chromium-based derivatives.

RemediationAI

Update Google Chrome to version 137.0.7151.119 or later immediately; details: Users should enable automatic updates or manually update via Settings > About Chrome > Check for Updates Update Chromium-based browsers (Edge, Brave, Opera, etc.) to their corresponding fixed releases; details: Each browser vendor will release patches based on upstream Chromium 137 release; check individual vendor security advisories Workaround: Restrict JavaScript execution or disable V8 features where possible; details: Not practical for end users; enterprise deployments may use policies to restrict script execution, but this breaks most web functionality Mitigation: Isolate browsing or use sandboxed environments for untrusted content; details: Use browser sandboxing (enabled by default in Chrome) and avoid clicking suspicious links Reference: Monitor Google Security Blog and Chrome Release Notes; link: https://chromereleases.googleblog.com/

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Vendor StatusVendor

Ubuntu

Priority: Medium
chromium-browser
Release Status Version
jammy not-affected code not present
noble not-affected code not present
oracular not-affected code not present
plucky 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 137.0.7151.119-1~deb12u1 -
bookworm (security) fixed 146.0.7680.71-1~deb12u1 -
trixie fixed 145.0.7632.159-1~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 137.0.7151.119-1 -

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

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CVE-2025-6191 vulnerability details – vuln.today

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