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CVE-2026-23303smb: client: Don't log plaintext credentials in cifs_set_cifscreds
- 5.5MediumCVSS base score
- 0.13%Exploitation in 30 daysEPSS · top 97% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 2 months later
· 2 months later
Published
- 8 months later
· 8 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.13% · top 97% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 8a8798a5ff90977d6459ce1d657cf8fe13a51e97 – < e5a3b11e07b335006371915b2da47b6056c9e3bc
- affected 8a8798a5ff90977d6459ce1d657cf8fe13a51e97 – < 54c570de9a35860dfa85fe668f23ddfda8cc7e26
- affected 8a8798a5ff90977d6459ce1d657cf8fe13a51e97 – < ff0ece8ed04180c52167c003362284b23cf54e8d
- affected 8a8798a5ff90977d6459ce1d657cf8fe13a51e97 – < 3990f352bb0adc8688d0949a9c13e3110570eb61
- affected 8a8798a5ff90977d6459ce1d657cf8fe13a51e97 – < b746a357abfb8fdb0a171d51ec5091e786d34be1
- affected 8a8798a5ff90977d6459ce1d657cf8fe13a51e97 – < 2ef0fc3bf49db2b9df36d5f44508c9e384bfa2a1
- affected 8a8798a5ff90977d6459ce1d657cf8fe13a51e97 – < 3e182701db612ddd794ccd5ed822e6cc1db2b972
- affected 8a8798a5ff90977d6459ce1d657cf8fe13a51e97 – < 2f37dc436d4e61ff7ae0b0353cf91b8c10396e4d
- affected 3.3
- unaffected < 3.3
- unaffected 5.10.253 – ≤ 5.10.*
- unaffected 5.15.203 – ≤ 5.15.*
- unaffected 6.1.167 – ≤ 6.1.*
- unaffected 6.6.130 – ≤ 6.6.*
- unaffected 6.12.77 – ≤ 6.12.*
- unaffected 6.18.17 – ≤ 6.18.*
- unaffected 6.19.7 – ≤ 6.19.*
- unaffected 7.0 – ≤ *
References
References9
- https://git.kernel.org/stable/c/e5a3b11e07b335006371915b2da47b6056c9e3bc (opens in a new tab)
- https://git.kernel.org/stable/c/54c570de9a35860dfa85fe668f23ddfda8cc7e26 (opens in a new tab)
- https://git.kernel.org/stable/c/ff0ece8ed04180c52167c003362284b23cf54e8d (opens in a new tab)
- https://git.kernel.org/stable/c/3990f352bb0adc8688d0949a9c13e3110570eb61 (opens in a new tab)
- https://git.kernel.org/stable/c/b746a357abfb8fdb0a171d51ec5091e786d34be1 (opens in a new tab)
- https://git.kernel.org/stable/c/2ef0fc3bf49db2b9df36d5f44508c9e384bfa2a1 (opens in a new tab)
- https://git.kernel.org/stable/c/3e182701db612ddd794ccd5ed822e6cc1db2b972 (opens in a new tab)
- https://git.kernel.org/stable/c/2f37dc436d4e61ff7ae0b0353cf91b8c10396e4d (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-15240 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-23303)Record last updated .