CVE-2026-23303

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-03-25. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
5.5
EG Score
5.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity55% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

March 25, 2026

Last Modified

June 17, 2026

Advisory Details (8)

Auto-updated Aug 6, 2026
No patch confirmed yet.
generic

smb: client: Don't log plaintext credentials in cifs_set_cifscreds - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ff0ece8ed04180c52167c003362284b23cf54e8d
generic

smb: client: Don't log plaintext credentials in cifs_set_cifscreds - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e5a3b11e07b335006371915b2da47b6056c9e3bc
generic

smb: client: Don't log plaintext credentials in cifs_set_cifscreds - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b746a357abfb8fdb0a171d51ec5091e786d34be1
generic

smb: client: Don't log plaintext credentials in cifs_set_cifscreds - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/54c570de9a35860dfa85fe668f23ddfda8cc7e26
generic

smb: client: Don't log plaintext credentials in cifs_set_cifscreds - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3e182701db612ddd794ccd5ed822e6cc1db2b972
generic

smb: client: Don't log plaintext credentials in cifs_set_cifscreds - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3990f352bb0adc8688d0949a9c13e3110570eb61
generic

smb: client: Don't log plaintext credentials in cifs_set_cifscreds - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2f37dc436d4e61ff7ae0b0353cf91b8c10396e4d
generic

smb: client: Don't log plaintext credentials in cifs_set_cifscreds - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2ef0fc3bf49db2b9df36d5f44508c9e384bfa2a1

Vendor Advisories for CVE-2026-23303(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
linuxKernel @ 5.10.253—osv
linuxKernel @ 6.1.167—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (53 versions)5.10.257-1—
linux-6.16.1.106-3~deb11u1 ... 6.1.164-1~deb11u1 (16 versions)6.1.170-1~deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (48 versions)6.1.170-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.85-1~bpo12+1 (17 versions)6.12.85-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 6.19~rc8-1~exp1 (117 versions)6.19.8-1—

Additional Vendor Advisories

(24)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 7× in last 7d / 45× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 198 total refreshes for this CVE.

  1. 2026-09-04 05:06 UTCEPSS rescore
  2. 2026-09-02 15:01 UTCOSV refresh
  3. 2026-09-02 14:11 UTCEPSS rescore
  4. 2026-09-01 13:53 UTCEPSS rescore
  5. 2026-09-01 04:39 UTCEPSS rescore
  6. 2026-08-30 19:17 UTCEPSS rescore
  7. 2026-08-30 01:22 UTCEPSS rescore
  8. 2026-08-28 21:41 UTCEPSS rescore
  9. 2026-08-27 14:25 UTCEPSS rescore
  10. 2026-08-26 14:46 UTCEPSS rescore
  11. 2026-08-25 13:48 UTCEPSS rescore
  12. 2026-08-23 00:19 UTCEPSS rescore
  13. 2026-08-21 23:49 UTCEPSS rescore
  14. 2026-08-19 17:03 UTCEPSS rescore
  15. 2026-08-18 13:48 UTCEPSS rescore
  16. 2026-08-16 14:56 UTCEPSS rescore
  17. 2026-08-16 10:25 UTCEG score recompute
  18. 2026-08-16 10:25 UTCVendor advisory
  19. 2026-08-16 10:25 UTCGHSA enrichment
  20. 2026-08-16 02:14 UTCEPSS rescore
  21. 2026-08-15 01:30 UTCEPSS rescore
  22. 2026-08-14 06:45 UTCEG score recompute
  23. 2026-08-14 06:45 UTCVendor advisory
  24. 2026-08-14 06:45 UTCGHSA enrichment
  25. 2026-08-13 22:00 UTCEPSS rescore
Show 75 more
  1. 2026-08-12 22:36 UTCEG score recompute
  2. 2026-08-12 22:36 UTCVendor advisory
  3. 2026-08-12 22:36 UTCGHSA enrichment
  4. 2026-08-12 13:50 UTCEPSS rescore
  5. 2026-08-11 21:01 UTCEG score recompute
  6. 2026-08-11 21:01 UTCVendor advisory
  7. 2026-08-11 21:01 UTCGHSA enrichment
  8. 2026-08-11 00:00 UTCEPSS rescore
  9. 2026-08-10 07:55 UTCEG score recompute
  10. 2026-08-10 07:55 UTCVendor advisory
  11. 2026-08-10 07:55 UTCGHSA enrichment
  12. 2026-08-09 13:46 UTCEPSS rescore
  13. 2026-08-09 06:20 UTCEG score recompute
  14. 2026-08-09 06:20 UTCVendor advisory
  15. 2026-08-09 06:20 UTCGHSA enrichment
  16. 2026-08-08 16:37 UTCEPSS rescore
  17. 2026-08-07 16:37 UTCEG score recompute
  18. 2026-08-07 16:37 UTCVendor advisory
  19. 2026-08-07 16:37 UTCGHSA enrichment
  20. 2026-08-06 13:46 UTCEPSS rescore
  21. 2026-08-06 01:06 UTCEG score recompute
  22. 2026-08-06 01:06 UTCVendor advisory
  23. 2026-08-06 01:06 UTCGHSA enrichment
  24. 2026-08-05 19:17 UTCEPSS rescore
  25. 2026-08-04 15:10 UTCEPSS rescore
  26. 2026-08-04 10:38 UTCEPSS rescore
  27. 2026-08-03 23:51 UTCEG score recompute
  28. 2026-08-03 23:51 UTCVendor advisory
  29. 2026-08-03 23:51 UTCGHSA enrichment
  30. 2026-08-03 10:35 UTCEPSS rescore
  31. 2026-08-02 15:40 UTCEG score recompute
  32. 2026-08-02 15:40 UTCVendor advisory
  33. 2026-08-02 15:40 UTCGHSA enrichment
  34. 2026-08-02 02:26 UTCEPSS rescore
  35. 2026-08-01 04:15 UTCEPSS rescore
  36. 2026-07-30 01:30 UTCEPSS rescore
  37. 2026-07-27 14:13 UTCEPSS rescore
  38. 2026-07-26 14:54 UTCEPSS rescore
  39. 2026-07-26 14:54 UTCEPSS rescore
  40. 2026-07-25 14:17 UTCEPSS rescore
  41. 2026-07-25 14:17 UTCEPSS rescore
  42. 2026-07-24 14:17 UTCEPSS rescore
  43. 2026-07-23 14:18 UTCEPSS rescore
  44. 2026-07-23 14:18 UTCEPSS rescore
  45. 2026-07-23 03:06 UTCEG score recompute
  46. 2026-07-22 14:08 UTCEPSS rescore
  47. 2026-07-21 15:24 UTCEPSS rescore
  48. 2026-07-21 15:24 UTCEPSS rescore
  49. 2026-07-20 17:08 UTCEPSS rescore
  50. 2026-07-19 14:31 UTCEPSS rescore
  51. 2026-07-19 14:31 UTCEPSS rescore
  52. 2026-07-19 02:29 UTCEPSS rescore
  53. 2026-07-19 02:28 UTCEPSS rescore
  54. 2026-07-18 10:04 UTCEPSS rescore
  55. 2026-07-18 10:04 UTCEPSS rescore
  56. 2026-07-17 07:16 UTCOSV refresh
  57. 2026-07-16 17:03 UTCEPSS rescore
  58. 2026-07-16 17:03 UTCEPSS rescore
  59. 2026-07-15 16:57 UTCEPSS rescore
  60. 2026-07-15 16:57 UTCEPSS rescore
  61. 2026-07-15 02:00 UTCEPSS rescore
  62. 2026-07-15 02:00 UTCEPSS rescore
  63. 2026-07-13 22:30 UTCEPSS rescore
  64. 2026-07-12 05:46 UTCEPSS rescore
  65. 2026-07-12 05:46 UTCEPSS rescore
  66. 2026-07-11 08:27 UTCEPSS rescore
  67. 2026-07-09 19:10 UTCEPSS rescore
  68. 2026-07-08 15:15 UTCEPSS rescore
  69. 2026-07-08 15:15 UTCEPSS rescore
  70. 2026-07-07 13:46 UTCEPSS rescore
  71. 2026-07-06 16:27 UTCEPSS rescore
  72. 2026-07-06 16:27 UTCEPSS rescore
  73. 2026-07-06 02:23 UTCEPSS rescore
  74. 2026-07-06 02:23 UTCEPSS rescore
  75. 2026-07-05 02:30 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-23303?
CVE-2026-23303 is a medium vulnerability published on March 25, 2026. In the Linux kernel, the following vulnerability has been resolved: smb: client: Don't log plaintext credentials in cifssetcifscreds When debug logging is enabled, cifssetcifscreds() logs the key payload and exposes the plaintext username and password. Remove the debug log to avoid exposing…
When was CVE-2026-23303 disclosed?
CVE-2026-23303 was first published in the National Vulnerability Database on March 25, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-23303 actively exploited?
CVE-2026-23303 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 97.7% of all scored CVEs.
What is the CVSS score of CVE-2026-23303?
CVE-2026-23303 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-23303?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-23303, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-23303

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