Google Chromium V8 Type Confusion Vulnerability (CVE-2025-10585)
Severity: critical · Patch status: unknown · Since 2025-09-23 · CVE-2025-10585
Google Chromium contains a type confusion vulnerability in the V8 JavaScript and WebAssembly engine. CISA added CVE-2025-10585 to its Known Exploited Vulnerabilities catalog on Sep 23, 2025, which means attackers are exploiting it in the wild.
What to do
- Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- US federal agencies must remediate by Oct 14, 2025 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch