Vulnerability in Google Chrome
CVE-2025-4609
Incorrect handle provided in unspecified circumstances in Mojo in Google Chrome on Windows prior to 136.0.7103.113 allowed a remote attacker to potentially perform a sandbox escape via a malicious file. (Chromium security severity: High)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (30.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: -0.000
Affected products
- Google Chrome — versions 136.0.7103.113
- Microsoft Windows
Weakness classification (CWE)
Public proof-of-concept exploits
References
- chromereleases.googleblog.com/2025/05/stable-channel-update-for-desktop_14.html (Release Notes)
- issues.chromium.org/issues/412578726 (Exploit, Issue Tracking)
Frequently asked questions
- What is CVE-2025-4609?
- CVE-2025-4609 is a critical-severity vulnerability in Google Chrome, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 9.6/10. Published 2025-08-22.
- How severe is CVE-2025-4609?
- Critical severity. CVSS v3 base score is 9.6 out of 10.
- Is CVE-2025-4609 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.