CVE-2026-23289

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:

IB/mthca: Add missed mthca_unmap_user_db() for mthca_create_srq()

Fix a user triggerable leak on the system call failure path.

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

IB/mthca: Add missed mthca_unmap_user_db() for mthca_create_srq() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f67f1ad4029e9fa183141546de31987b254c9292
generic

IB/mthca: Add missed mthca_unmap_user_db() for mthca_create_srq() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/deee46b37ebd8cc5ff810127883fca90f2412a7b
generic

IB/mthca: Add missed mthca_unmap_user_db() for mthca_create_srq() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/da8eaa73bc37d004350ba68eb18b6ade8e49db52
generic

IB/mthca: Add missed mthca_unmap_user_db() for mthca_create_srq() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d0148965dbca8cc8efa7e3d6e99940487bf661c0
generic

IB/mthca: Add missed mthca_unmap_user_db() for mthca_create_srq() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/972b72d7e2d8fe1400f1c7a8304c282c539b7e02
generic

IB/mthca: Add missed mthca_unmap_user_db() for mthca_create_srq() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/72fcfd4df46f2ee684c4776664d0cfc6c1746c9a
generic

IB/mthca: Add missed mthca_unmap_user_db() for mthca_create_srq() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/11ac61f4e9b7c48b0dd44661765e5ace3c441aa3
generic

IB/mthca: Add missed mthca_unmap_user_db() for mthca_create_srq() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/117942ca43e2e3c3d121faae530989931b7f67e1

Vendor Advisories for CVE-2026-23289(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 / 48× 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 202 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. 2026-08-20 22:55 UTCEPSS rescore
  15. 2026-08-19 17:03 UTCEPSS rescore
  16. 2026-08-18 13:48 UTCEPSS rescore
  17. 2026-08-17 13:47 UTCEPSS rescore
  18. 2026-08-16 14:56 UTCEPSS rescore
  19. 2026-08-16 10:26 UTCEG score recompute
  20. 2026-08-16 10:26 UTCVendor advisory
  21. 2026-08-16 10:26 UTCGHSA enrichment
  22. 2026-08-16 02:14 UTCEPSS rescore
  23. 2026-08-15 01:30 UTCEPSS rescore
  24. 2026-08-14 06:45 UTCEG score recompute
  25. 2026-08-14 06:45 UTCVendor advisory
Show 75 more
  1. 2026-08-14 06:45 UTCGHSA enrichment
  2. 2026-08-13 22:00 UTCEPSS rescore
  3. 2026-08-12 20:59 UTCEG score recompute
  4. 2026-08-12 20:59 UTCVendor advisory
  5. 2026-08-12 20:59 UTCGHSA enrichment
  6. 2026-08-12 13:50 UTCEPSS rescore
  7. 2026-08-11 13:42 UTCEPSS rescore
  8. 2026-08-11 06:39 UTCEG score recompute
  9. 2026-08-11 06:39 UTCVendor advisory
  10. 2026-08-11 06:38 UTCGHSA enrichment
  11. 2026-08-11 00:00 UTCEPSS rescore
  12. 2026-08-10 06:30 UTCEG score recompute
  13. 2026-08-10 06:30 UTCVendor advisory
  14. 2026-08-10 06:30 UTCGHSA enrichment
  15. 2026-08-09 13:46 UTCEPSS rescore
  16. 2026-08-09 06:21 UTCEG score recompute
  17. 2026-08-09 06:21 UTCVendor advisory
  18. 2026-08-09 06:21 UTCGHSA enrichment
  19. 2026-08-08 16:37 UTCEPSS rescore
  20. 2026-08-07 16:38 UTCEG score recompute
  21. 2026-08-07 16:38 UTCVendor advisory
  22. 2026-08-07 16:38 UTCGHSA enrichment
  23. 2026-08-06 13:46 UTCEPSS rescore
  24. 2026-08-06 01:06 UTCEG score recompute
  25. 2026-08-06 01:06 UTCVendor advisory
  26. 2026-08-06 01:06 UTCGHSA enrichment
  27. 2026-08-05 19:17 UTCEPSS rescore
  28. 2026-08-04 15:10 UTCEPSS rescore
  29. 2026-08-04 10:38 UTCEPSS rescore
  30. 2026-08-03 23:52 UTCEG score recompute
  31. 2026-08-03 23:52 UTCVendor advisory
  32. 2026-08-03 23:52 UTCGHSA enrichment
  33. 2026-08-03 10:35 UTCEPSS rescore
  34. 2026-08-02 15:40 UTCEG score recompute
  35. 2026-08-02 15:40 UTCVendor advisory
  36. 2026-08-02 15:40 UTCGHSA enrichment
  37. 2026-08-02 02:26 UTCEPSS rescore
  38. 2026-08-01 04:15 UTCEPSS rescore
  39. 2026-07-30 01:30 UTCEPSS rescore
  40. 2026-07-27 14:13 UTCEPSS rescore
  41. 2026-07-26 14:54 UTCEPSS rescore
  42. 2026-07-26 14:54 UTCEPSS rescore
  43. 2026-07-25 14:17 UTCEPSS rescore
  44. 2026-07-25 14:17 UTCEPSS rescore
  45. 2026-07-24 14:17 UTCEPSS rescore
  46. 2026-07-23 14:18 UTCEPSS rescore
  47. 2026-07-23 14:18 UTCEPSS rescore
  48. 2026-07-23 03:06 UTCEG score recompute
  49. 2026-07-22 14:08 UTCEPSS rescore
  50. 2026-07-21 15:24 UTCEPSS rescore
  51. 2026-07-21 15:24 UTCEPSS rescore
  52. 2026-07-20 17:08 UTCEPSS rescore
  53. 2026-07-19 14:31 UTCEPSS rescore
  54. 2026-07-19 14:31 UTCEPSS rescore
  55. 2026-07-19 02:29 UTCEPSS rescore
  56. 2026-07-19 02:28 UTCEPSS rescore
  57. 2026-07-18 10:04 UTCEPSS rescore
  58. 2026-07-18 10:04 UTCEPSS rescore
  59. 2026-07-17 07:16 UTCOSV refresh
  60. 2026-07-16 17:03 UTCEPSS rescore
  61. 2026-07-16 17:03 UTCEPSS rescore
  62. 2026-07-15 16:57 UTCEPSS rescore
  63. 2026-07-15 16:57 UTCEPSS rescore
  64. 2026-07-13 22:30 UTCEPSS rescore
  65. 2026-07-13 06:13 UTCEPSS rescore
  66. 2026-07-13 06:13 UTCEPSS rescore
  67. 2026-07-12 05:46 UTCEPSS rescore
  68. 2026-07-12 05:46 UTCEPSS rescore
  69. 2026-07-11 08:27 UTCEPSS rescore
  70. 2026-07-09 19:10 UTCEPSS rescore
  71. 2026-07-08 15:15 UTCEPSS rescore
  72. 2026-07-08 15:15 UTCEPSS rescore
  73. 2026-07-07 13:46 UTCEPSS rescore
  74. 2026-07-06 16:27 UTCEPSS rescore
  75. 2026-07-06 16:27 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-23289?
CVE-2026-23289 is a medium vulnerability published on March 25, 2026. In the Linux kernel, the following vulnerability has been resolved: IB/mthca: Add missed mthcaunmapuserdb() for mthcacreate_srq() Fix a user triggerable leak on the system call failure path.
When was CVE-2026-23289 disclosed?
CVE-2026-23289 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-2026-23289 actively exploited?
CVE-2026-23289 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-2026-23289?
CVE-2026-23289 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-23289?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-23289, 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-2026-23289

Explore →

Is Your Infrastructure Affected by CVE-2026-23289?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs