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Vulnerability record · CVE-2026-43377 · published 8 May 2026

CVE-2026-43377: Linux kernel vulnerability

Linux · Linux Kernel

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.

8.1 CVSS 3.1 High EPSS 0.33% · top 75.8%
8.1CVSS 3.1 base score
0.33%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

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

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-43377), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.