Exploited· due 2025-10-14

CVE-2025-10585

Google Chromium V8

Google Chromium contains a type confusion vulnerability in the V8 JavaScript and WebAssembly engine.

Exploitation status

  • CISA has confirmed this is being exploited in the wild. That is an observation of real attacks, not a prediction.
  • US federal civilian agencies are required to remediate it by 2025-10-14. That deadline does not bind private companies, but it is a reasonable benchmark for how urgently CISA views it.

Required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

CISA’s wording, unedited.

Scoring

CVSS
Not yet scored

Dates

Published
2025-09-23
Added to KEV
2025-09-23
Remediation due
2025-10-14
Sources
CISA KEV