CVE-2026-43377

ksmbd: Don't log keys in SMB3 signing and encryption key generation

CVSS 8.1 HIGHEPSS 0.2%

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.1EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

08 May 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

In the Linux kernel, the following vulnerability has been resolved: ksmbd: Don't log keys in SMB3 signing and encryption key generation When KSMBD_DEBUG_AUTH logging is enabled, generate_smb3signingkey() and generate_smb3encryptionkey() log the session, signing, encryption, and decryption key bytes. Remove the logs to avoid exposing credentials.

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

Affected products

Linux · Linux

References

https://git.kernel.org/stable/c/3fe2d9ec166b7df9a8df6c0fdcfc210572e27e3f https://git.kernel.org/stable/c/407cc37c21d51f9b9d4d20204b04890880cfa6ae https://git.kernel.org/stable/c/4084ed720d7d5f4e975c9e4a6267a552dad3b24a https://git.kernel.org/stable/c/441336115df26b966575de56daf7107ed474faed https://git.kernel.org/stable/c/c6b01b997a2094969e315f1ebfc1d64b8ae2163d https://git.kernel.org/stable/c/fec5c70b82af3f59f15bb984df94e5ad1fccfb1e