VULNERABILITY INTELLIGENCE

CVE-2021-31566

CVSS score7.8 HIGH
EPSS probability0.39%
CISA KEVNot currently listed
Published2022-08-23
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Description

An improper link resolution flaw can occur while extracting an archive leading to changing modes, times, access control lists, and flags of a file outside of the archive. An attacker may provide a malicious archive to a victim user, who would trigger this flaw when trying to extract the archive. A local attacker may use this flaw to gain more privileges in a system.

Weakness classification

  • CWE-59: Improper Link Resolution Before File Access ('Link Following')

Primary references