CVE-2026-43383

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.

CVSS v3 9.4 CRITICAL

9.4^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/02669e2a4d207068edce7e8b5fafd85822018ce6	Patch
https://git.kernel.org/stable/c/345a9530756528d7ca407663d659c3c40e75c3dd	Patch
https://git.kernel.org/stable/c/46d0d6f50dab706637f4c18a470aac20a21900d3	Patch
https://git.kernel.org/stable/c/5d305a95130a8d08b9545e47f1e18d29d59866cb	Patch
https://git.kernel.org/stable/c/821c8751fdeecdeecabeb11704dd33439c9e4bbc	Patch
https://git.kernel.org/stable/c/ae3831b44f477de048287493e184fc3ff913b624	Patch
https://git.kernel.org/stable/c/b502e97e29d791ff7a8051f29a414535739be218	Patch
https://git.kernel.org/stable/c/ff44ec94d4fc8348600a69de0a8fa1102c23bce8

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc1::::::
	cpe:2.3:o:linux:linux_kernel:7.0:rc2::::::

History

No history.

Information

Published : 2026-05-08 15:16

Updated : 2026-06-19 13:16

NVD link : CVE-2026-43383

Mitre link : CVE-2026-43383

CVE.ORG link : CVE-2026-43383

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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