CVE-2025-12905 Security feature bypass in Chrome

What is CVE-2025-12905?

CVE-2025-12905 is a medium-severity vulnerability in Google Chrome, published on 7 Nov 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Inappropriate implementation in Downloads in Google Chrome on Windows prior to 140.0.7339.80 allowed a remote attacker to bypass Mark of the Web via a crafted HTML page. (Chromium security severity: Low)

Weakness: CWE-346

Which versions are affected by CVE-2025-12905?

It affects 1 product.

Products include Google Chrome.

How do I fix CVE-2025-12905?

No fix has been published for CVE-2025-12905 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-12905 being exploited?

There is no known exploitation of CVE-2025-12905 in the wild and no public exploit code.

Other vulnerabilities in Google Chrome

• CVE-2022-4135 Google Chromium GPU Heap Buffer Overflow Exploited Critical 9.6
• CVE-2020-16017 Google Chrome Use-After-Free Exploited Critical 9.6
• CVE-2020-16010 Google Chrome for Android UI Heap Buffer Overflow Exploited Critical 9.6
• CVE-2026-87491 Google Chromium V8 Out of Bounds Write Exploited High 8.8
• CVE-2026-85046 Google Chromium V8 Type Confusion Exploited High 8.8

All Google Chrome vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-2327-x98x-57c5.