CVE-2026-43383

CRITICAL

9.4

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.

CVE Details

CVSS v3.1 Score9.4

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published5/8/2026

Last Modified5/12/2026

Sourcenvd

Honeypot Sightings0

References

https://git.kernel.org/stable/c/02669e2a4d207068edce7e8b5fafd85822018ce6(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/345a9530756528d7ca407663d659c3c40e75c3dd(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/46d0d6f50dab706637f4c18a470aac20a21900d3(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/5d305a95130a8d08b9545e47f1e18d29d59866cb(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/821c8751fdeecdeecabeb11704dd33439c9e4bbc(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/ae3831b44f477de048287493e184fc3ff913b624(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/b502e97e29d791ff7a8051f29a414535739be218(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

IOC Correlations

No correlations recorded

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