Medium 5.5Published Mar 25, 2026

CVE-2026-23303smb: client: Don't log plaintext credentials in cifs_set_cifscreds

Updated under an hour ago (Oct 27, 2026, 5:23 PM ET)

Does this affect you?

It affects Linux and 2 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Linux

Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: smb: client: Don't log plaintext credentials in cifs_set_cifscreds When debug logging is enabled, cifs_set_cifscreds() logs the key payload and exposes the plaintext username and password. Remove the debug log to avoid exposing credentials.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 8a8798a5ff90977d6459ce1d657cf8fe13a51e97 before e5a3b11e07b335006371915b2da47b6056c9e3bc; from 8a8798a5ff90977d6459ce1d657cf8fe13a51e97 before 54c570de9a35860dfa85fe668f23ddfda8cc7e26; from 8a8798a5ff90977d6459ce1d657cf8fe13a51e97 before ff0ece8ed04180c52167c003362284b23cf54e8d; from 8a8798a5ff90977d6459ce1d657cf8fe13a51e97 before 3990f352bb0adc8688d0949a9c13e3110570eb61; from 8a8798a5ff90977d6459ce1d657cf8fe13a51e97 before b746a357abfb8fdb0a171d51ec5091e786d34be1; 8a8798a5ff90977d6459ce1d657cf8fe13a51e97 builds before 2ef0fc3bf49db2b9df36d5f44508c9e384bfa2a1; 8a8798a5ff90977d6459ce1d657cf8fe13a51e97 builds before 3e182701db612ddd794ccd5ed822e6cc1db2b972; 8a8798a5ff90977d6459ce1d657cf8fe13a51e97 builds before 2f37dc436d4e61ff7ae0b0353cf91b8c10396e4d	CNA record
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name)	all versions	CISA ADP
linux linux_kernel linux:linux_kernel	from 3.3.1 before 5.10.253; from 5.11 before 5.15.203; from 5.16 before 6.1.167; from 6.2 before 6.6.130; from 6.7 before 6.12.77; from 6.13 before 6.18.17; from 6.19 before 6.19.7; 3.3; and 7 more ranges	NVD

References

References

https://git.kernel.org/stable/c/e5a3b11e07b335006371915b2da47b6056c9e3bc	patch
https://git.kernel.org/stable/c/54c570de9a35860dfa85fe668f23ddfda8cc7e26	patch
https://git.kernel.org/stable/c/ff0ece8ed04180c52167c003362284b23cf54e8d	patch
https://git.kernel.org/stable/c/3990f352bb0adc8688d0949a9c13e3110570eb61	patch
https://git.kernel.org/stable/c/b746a357abfb8fdb0a171d51ec5091e786d34be1	patch
https://git.kernel.org/stable/c/2ef0fc3bf49db2b9df36d5f44508c9e384bfa2a1	patch
https://git.kernel.org/stable/c/3e182701db612ddd794ccd5ed822e6cc1db2b972	patch
https://git.kernel.org/stable/c/2f37dc436d4e61ff7ae0b0353cf91b8c10396e4d	patch
https://cert-portal.siemens.com/productcert/html/ssa-784472.html

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.