CVE-2026-23364
HIGH severity · CVSS 7.4
7.4CVSS HIGH
Summary
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().
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactNone
Exploit probability (EPSS)0%
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/2cdc56ed67615ba0921383a688f24415ebe065f3 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/2cdc56ed67615ba0921383a688f24415ebe065f3Patch
- https://git.kernel.org/stable/c/307afccb751f542246bd5dc68a2c1ffe1a78418cPatch
- https://git.kernel.org/stable/c/93c0a22fec914ec4b697e464895a0f594e29fb28Patch
- https://git.kernel.org/stable/c/c5794709bc9105935dbedef8b9cf9c06f2b559faPatch
- https://git.kernel.org/stable/c/cd52a0e309659537048a864211abc3ea4c5caa63Patch
- https://git.kernel.org/stable/c/f4588b85efd6007d46b80aa1b9fb746628ffb3dcPatch
- https://git.kernel.org/stable/c/8a665d733940592e671ec6afadcd0be80a091a80