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CVE-2025-12433

19
FAUCET Score

CVE-2025-12433 is a high-severity vulnerability in Google Chrome's V8 JavaScript engine, affecting various operating systems including Apple, Google, Linux, and Microsoft. This flaw, categorized as an "inappropriate implementation," allows a remote attacker to achieve out-of-bounds memory access by enticing a user to visit a specially crafted HTML page. While the CVSS score is a medium 4.3, indicating low impact on confidentiality and no impact on integrity or availability, its high severity rating from Chromium suggests a significant risk. Currently, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 142.0.7444.59CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
>= 142.0.7444.59, < 142.0.7444.59CPE match
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.28%
Probability of exploitation in next 30 days
EPSS Percentile
19.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0028 is in the 20th percentile among its peer group of 26,236 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

microsoftpatch availablevia msrc
Product: Microsoft Edge (Chromium-based)Fixed in: 142.0.3595.53
googlevendor investigatingvia nvd_reference
View patch

Vendor Advisories (2)

redhatCVE-2025-12433Important

chromium-browser: Inappropriate implementation in V8

Nov 10, 2025
microsoft2025-Oct/CVE-2025-12433

Chromium: CVE-2025-12433 Inappropriate implementation in V8

Oct 14, 2025

References

chromereleases.googleblog.com / 2025/10/stable-channel-update-for-desktop_28.html
Release NotesVendor Advisory
issues.chromium.org / issues/449760249
Issue TrackingPermissions Required