Actively exploited · Published Sep 24, 2025 · Assigned by Chrome
CVE-2025-10585
High 8.8 Exploited
In plain English
A high-severity type confusion in Chrome from Google. Attackers are actively exploiting it in the wild (listed by CISA on September 23, 2025). The chance it is exploited in the next 30 days is estimated at 9.0% (higher than 95% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
CISA guidance
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Federal agencies must remediate by Oct 14, 2025.
Official description
Type confusion in V8 in Google Chrome prior to 140.0.7339.185 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | chromium | 140.0.7339.185-1~deb12u1 | DEBIAN-CVE-2025-10585 |
| Debian:12 | chromium | 140.0.7339.185-1~deb12u1 | DSA-6004-1 |
| Debian:13 | chromium | 140.0.7339.185-1~deb13u1 | DEBIAN-CVE-2025-10585 |
| Debian:13 | chromium | 140.0.7339.185-1~deb13u1 | DSA-6004-1 |
| Debian:14 | chromium | 140.0.7339.185-1 | DEBIAN-CVE-2025-10585 |
Affected products (as reported)
Weakness: CWE-843 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- https://chromereleases.googleblog.com/2025/09/stable-channel-update-for-desktop_17.html
- https://issues.chromium.org/issues/445380761
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-10585 government-resource
- https://cert-portal.siemens.com/productcert/html/ssa-470355.html