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CVE-2026-23364

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CVE-2026-23364

Published: Mar 25, 2026

Modified: May 11, 2026

PUBLISHED

CVSS v3.1

7.4

HIGH

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Compare MACs in constant time To prevent timing attacks, MAC comparisons need to be constant-time. Replace the memcmp() with the correct function, crypto_memneq().

VendorProductVersions

Linux

Linux

affected
e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 - < cd52a0e309659537048a864211abc3ea4c5caa63
affected
e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 - < 307afccb751f542246bd5dc68a2c1ffe1a78418c
affected
e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 - < 2cdc56ed67615ba0921383a688f24415ebe065f3
affected
e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 - < 93c0a22fec914ec4b697e464895a0f594e29fb28
affected
e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 - < f4588b85efd6007d46b80aa1b9fb746628ffb3dc

+1 more versions

Linux

Linux

affected
5.15
unaffected
0 - < 5.15
unaffected
6.1.167 - <= 6.1.*
unaffected
6.6.130 - <= 6.6.*
unaffected
6.12.78 - <= 6.12.*

+3 more versions

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

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