CVE-2026-23364
ksmbd: Compare MACs in constant time
CVSS Score
7.4
EPSS Score
0.0%
EPSS Percentile
0th
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().
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Mar 25, 2026 |
| Last Updated | Apr 13, 2026 |
Stay Ahead of the Next One
Get instant alerts for linux linux
Be the first to know when new high vulnerabilities affecting linux linux are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < cd52a0e309659537048a864211abc3ea4c5caa63 e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < 307afccb751f542246bd5dc68a2c1ffe1a78418c e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < 2cdc56ed67615ba0921383a688f24415ebe065f3 e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < 93c0a22fec914ec4b697e464895a0f594e29fb28 e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < f4588b85efd6007d46b80aa1b9fb746628ffb3dc e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 < c5794709bc9105935dbedef8b9cf9c06f2b559fa
Linux / Linux
5.15
References
git.kernel.org: https://git.kernel.org/stable/c/cd52a0e309659537048a864211abc3ea4c5caa63 git.kernel.org: https://git.kernel.org/stable/c/307afccb751f542246bd5dc68a2c1ffe1a78418c git.kernel.org: https://git.kernel.org/stable/c/2cdc56ed67615ba0921383a688f24415ebe065f3 git.kernel.org: https://git.kernel.org/stable/c/93c0a22fec914ec4b697e464895a0f594e29fb28 git.kernel.org: https://git.kernel.org/stable/c/f4588b85efd6007d46b80aa1b9fb746628ffb3dc git.kernel.org: https://git.kernel.org/stable/c/c5794709bc9105935dbedef8b9cf9c06f2b559fa