CVE-2026-23137

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-02-14. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this week
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

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

of: unittest: Fix memory leak in unittest_data_add()

In unittest_data_add(), if of_resolve_phandles() fails, the allocated unittest_data is not freed, leading to a memory leak.

Fix this by using scope-based cleanup helper __free(kfree) for automatic resource cleanup. This ensures unittest_data is automatically freed when it goes out of scope in error paths.

For the success path, use retain_and_null_ptr() to transfer ownership of the memory to the device tree and prevent double freeing.

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
3%
KEV
Not listed

Published

February 14, 2026

Last Modified

September 14, 2026

Advisory Details (2)

Auto-updated Aug 9, 2026
No patch confirmed yet.
generic

of: unittest: Fix memory leak in unittest_data_add() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f09b0f705bd7197863b90256ef533a6414d1db2c
generic

of: unittest: Fix memory leak in unittest_data_add() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/235a1eb8d2dcc49a6cf0a5ee1aa85544a5d0054b

Vendor Advisories for CVE-2026-23137(1)

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

Patch Availability(7)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-azure-6.17 (6.17.0-1021.21~24.04.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fde-6.17 (6.17.0-1018.18~24.04.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-realtime-hwe-24.04 (6.17.0-1018.20~24.04.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-nvidia-hwe-24.04 (6.17.0-1031.31) @ noble2026-09-14ubuntu
ubuntulinux-tools-oem-6.17 (6.17.0-1030.30) @ noble2026-09-14ubuntu
ubuntulinux-tools-oracle-64k-6.17 (6.17.0-1019.19~24.04.3+1) @ noble2026-09-14ubuntu
linuxKernel @ 6.18.6—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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 7.2~rc5-1~exp1 (496 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 7.2~rc7-1~exp1 (350 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.2~rc7-1~exp1 (174 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 6.18~rc7-1~exp1 (96 versions)6.18.8-1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(7)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 9× in last 7d / 30× 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 171 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-23137?
CVE-2026-23137 is a medium vulnerability published on February 14, 2026. In the Linux kernel, the following vulnerability has been resolved: of: unittest: Fix memory leak in unittestdataadd() In unittestdataadd(), if ofresolvephandles() fails, the allocated unittest_data is not freed, leading to a memory leak. Fix this by using scope-based cleanup helper free(kfree) for…
When was CVE-2026-23137 disclosed?
CVE-2026-23137 was first published in the National Vulnerability Database on February 14, 2026, with the most recent update on September 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-23137 actively exploited?
CVE-2026-23137 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 97.4% of all scored CVEs.
What is the CVSS score of CVE-2026-23137?
CVE-2026-23137 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-23137?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-23137, 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

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