CVE-2026-43383CRITICAL 9.4EPSS p34.5%

CVE-2026-43383CVE-2026-43383

linux / linux_kernel

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.

Scoring

CVSS 3.19.4 (CRITICAL)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
EPSS0.43% probability of exploitation · percentile 34.5% · 2026-06-19T12:03:05Z
Published2026-05-08
Last modified2026-06-19

References

  1. https://git.kernel.org/stable/c/02669e2a4d207068edce7e8b5fafd85822018ce6
  2. https://git.kernel.org/stable/c/345a9530756528d7ca407663d659c3c40e75c3dd
  3. https://git.kernel.org/stable/c/46d0d6f50dab706637f4c18a470aac20a21900d3
  4. https://git.kernel.org/stable/c/5d305a95130a8d08b9545e47f1e18d29d59866cb
  5. https://git.kernel.org/stable/c/821c8751fdeecdeecabeb11704dd33439c9e4bbc
  6. https://git.kernel.org/stable/c/ae3831b44f477de048287493e184fc3ff913b624
  7. https://git.kernel.org/stable/c/b502e97e29d791ff7a8051f29a414535739be218

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