CVE-2025-10585
Google Chromium V8 Type Confusion Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 14 October 2025). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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)
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 8.97% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 23 September 2025 · due 14 October 2025
- Weakness
- CWE-843
- Affected
- google/chrome · siemens/cadra
- Source
- chrome-cve-admin@google.com
EPSS moved from 9.0% on 27 October 2026 to 9.0% on 30 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
CISA notes
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. https://chromereleases.googleblog.com/2025/09/stable-channel-update-for-desktop_17.html ; https://nvd.nist.gov/vuln/detail/CVE-2025-10585
References
- https://chromereleases.googleblog.com/2025/09/stable-channel-update-for-desktop_17.htmlRelease Notes, Vendor Advisory
- https://issues.chromium.org/issues/445380761Issue Tracking, Permissions Required
- https://cert-portal.siemens.com/productcert/html/ssa-470355.htmlThird Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-10585US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.