CVE-2025-6179: google chrome_os Incorrect Default Permissions
Vulnerability summary
CVE-2025-6179 is a critical (CVSS 9.8) Incorrect Default Permissions vulnerability in google chrome_os. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 11.6% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 16-06-2025PublishedVulnerability first disclosed.
- 17-06-2025Last modifiedVulnerability information updated.
Description
Permissions Bypass in Extension Management in Google ChromeOS 16181.27.0 on managed Chrome devices allows a local attacker to disable extensions and access Developer Mode, including loading additional extensions via exploiting vulnerabilities using the ExtHang3r and ExtPrint3r tools.
CVSS metrics
2 scores · 2 sources · 1 version- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.22%
Chance of exploitation in the next 30 days
Percentile
12%
Versus all other CVEs
30-day change
0.00 pp
From 0.22% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (issuetracker.google.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
1 vendor · 2 products
References
2 links- issues.chromium.org/issues/b/399652193Broken Link