Vulnerability in Google Chrome
CVE-2021-21172
Insufficient policy enforcement in File System API in Google Chrome on Windows prior to 89.0.4389.72 allowed a remote attacker to bypass filesystem restrictions via a crafted HTML page.
EPSS: 0.017 (74.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.
Affected products
- Google Chrome — versions unspecified
- Microsoft Windows
- Debian Debian_linux — versions 10.0
- Fedoraproject Fedora — versions 32, 33, 34
Public proof-of-concept exploits
References
- chrome-cve-admin@google.com (x_refsource_MISC, Release Notes, Vendor Advisory)
- chrome-cve-admin@google.com (Permissions Required, Exploit, Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
- chrome-cve-admin@google.com (x_refsource_FEDORA, vendor-advisory)
- chrome-cve-admin@google.com (x_refsource_FEDORA, vendor-advisory)
- chrome-cve-admin@google.com (x_refsource_FEDORA, vendor-advisory)
- chrome-cve-admin@google.com (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- chrome-cve-admin@google.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
Frequently asked questions
- What is CVE-2021-21172?
- CVE-2021-21172 is a high-severity vulnerability in Google Chrome. CVSS score: 8.1/10. Published 2021-03-09.
- How severe is CVE-2021-21172?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2021-21172 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.