CVE-2021-37975

Advisory lineage Upstream: 0 Downstream: 11
Analyzed
Published: 08 Oct 2021, 00:00
Last modified:21 Oct 2025, 23:25

Vulnerability Summary

Overall Risk (default)
medium
46/100
CVSS Score
8.8 HIGH
v3.1 (cve.org)
EPSS Score
55.81% CRITICAL
56% probability -7.14%
KEV
Listed
CISA
1 listing
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

08 Oct 2021, 00:00
Published
Vulnerability first disclosed
03 Nov 2021, 00:00
Added to CISA KEV
Google Chromium V8 Use-After-Free Vulnerability
17 Nov 2021, 00:00
CISA Remediation Due
Apply updates per vendor instructions.
21 Oct 2025, 23:25
Last Modified
Vulnerability information updated

Description

Use after free in V8 in Google Chrome prior to 94.0.4606.71 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

CVSS Metrics

  • v3.1•HIGH•Score: 8.8CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
  • v2.0•MEDIUM•Score: 6.8AV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 55.81%• Percentile: 98%

Techniques & Countermeasures

  • CWE-416•Use After Free

    The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected Systems

  • debian•debian_linux

    10.0 | 11.0

  • fedoraproject•fedora

    33 | 34 | 35

  • Unknown•Chrome

    < 94.0.4606.71 | ≥ unspecified, < 94.0.4606.71

References (8)