Google Chromium V8 Type Confusion Vulnerability (CVE-2025-13223)
Severity: high · Patch status: unknown · Since 2025-11-19 · CVE-2025-13223
Google Chromium V8 contains a type confusion vulnerability that allows for heap corruption. CISA added CVE-2025-13223 to its Known Exploited Vulnerabilities catalog on Nov 19, 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 Dec 10, 2025 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch