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Fencer Vulns
medium 6.5

CVE-2025-12445 json

Policy bypass in Extensions in Google Chrome prior to 142.0.7444.59 allowed an attacker who convinced a user to install a malicious extensi…

published 2025-11-10 11 mo ago modified 2026-10-07 32 d ago also EUVD-2025-50791

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.1%
EPSS 0.1% chance of exploitation in 30 days, percentile 3%
public exploits
0
none known

Summary

Policy bypass in Extensions in Google Chrome prior to 142.0.7444.59 allowed an attacker who convinced a user to install a malicious extension to leak cross-origin data via a crafted Chrome Extension. (Chromium security severity: Low)

Patch / fix

  • google chrome 142.0.7444.59
  • chromium Debian 12 142.0.7444.59-1~deb12u1
  • chromium Debian 13 142.0.7444.59-1~deb13u1
  • chromium Debian 14 142.0.7444.59-1

debian advisories DEBIAN-CVE-2025-12445

  • chromium openSUSE Leap 16.0 142.0.7444.162-bp160.1.1
  • chromium openSUSE Tumbleweed 142.0.7444.59-2.1

opensuse advisories openSUSE-SU-2025:20076-1openSUSE-SU-2025:15687-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-12445 updated cvss 4.3

chromium-browser: Policy bypass in Extensions

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
11 mo ago

Exploit prediction

0.15% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected products

  • Google Chrome

Classification

Weakness
  • CWE-288 Authentication Bypass Using an Alternate Path or Channel
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.