Vulnerability · Published Nov 10, 2025 · Assigned by Chrome
CVE-2025-12436
Medium 5.9
In plain English
A medium-severity missing authentication in Chrome from Google. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.9Medium
Exploit odds (30 days)0.2%top 93.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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 obtain potentially sensitive information from process memory via a crafted Chrome Extension. (Chromium security severity: Medium)
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | chromium | 142.0.7444.59-1~deb12u1 | DEBIAN-CVE-2025-12436 |
| Debian:12 | chromium | 142.0.7444.59-1~deb12u1 | DSA-6046-1 |
| Debian:13 | chromium | 142.0.7444.59-1~deb13u1 | DEBIAN-CVE-2025-12436 |
| Debian:13 | chromium | 142.0.7444.59-1~deb13u1 | DSA-6046-1 |
| Debian:14 | chromium | 142.0.7444.59-1 | DEBIAN-CVE-2025-12436 |
Affected products (as reported)
Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N