Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slub overflow in ksmbd_decode_ntlmssp_auth_blob() If authblob->SessionKey.Length is bigger than session key size(CIFS_KEY_SIZE), slub overflow can happen in key exchange codes. cifs_arc4_crypt copy to session key array from SessionKey from client.
Affected products
linux: linux kernel
References10
- git.kernel.org/stable/c/30fd6521b2fbd9b767e438e31945e5ea3e3a2fba Patch
- git.kernel.org/stable/c/4b081ce0d830b684fdf967abc3696d1261387254 Patch
- git.kernel.org/stable/c/7f1d6cb0eb6af3a8088dc24b7ddee9a9711538c4 Patch
- git.kernel.org/stable/c/bd554ed4fdc3d38404a1c43d428432577573e809 Patch
- git.kernel.org/stable/c/ecd7e1c562cb08e41957fcd4b0e404de5ab38e20 Patch
- git.kernel.org/stable/c/30fd6521b2fbd9b767e438e31945e5ea3e3a2fba Patch
- git.kernel.org/stable/c/4b081ce0d830b684fdf967abc3696d1261387254 Patch
- git.kernel.org/stable/c/7f1d6cb0eb6af3a8088dc24b7ddee9a9711538c4 Patch
- git.kernel.org/stable/c/bd554ed4fdc3d38404a1c43d428432577573e809 Patch
- git.kernel.org/stable/c/ecd7e1c562cb08e41957fcd4b0e404de5ab38e20 Patch
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 22% percentile: 98 · as of 5 November 2026
- CWE
- CWE-119
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.