VULNERABILITY INTELLIGENCE

CVE-2026-43383

CVSS score9.4 CRITICAL
EPSS probability0.54%
CISA KEVNot currently listed
Published2026-05-08
Last modified2026-10-19
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

Description

In the Linux kernel, the following vulnerability has been resolved: net/tcp-md5: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this.

Weakness classification

  • CWE-208: Observable Timing Discrepancy

Primary references