CVE-2026-45959

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-27. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 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:

crypto: ccp - Fix a crash due to incorrect cleanup usage of kfree

Annotating a local pointer variable, which will be assigned with the kmalloc-family functions, with the __cleanup(kfree) attribute will make the address of the local variable, rather than the address returned by kmalloc, passed to kfree directly and lead to a crash due to invalid deallocation of stack address. According to other places in the repo, the correct usage should be __free(kfree). The code coincidentally compiled because the parameter type void * of kfree is compatible with the desired type struct { ... } **.

CVSS v3
7.8
EG Score
7.8(medium)
EPSS
2.7%
KEV
Not listed

Published

May 27, 2026

Last Modified

June 16, 2026

Advisory Details (3)

Auto-updated Jun 4, 2026
No patch confirmed yet.
generic

crypto: ccp - Fix a crash due to incorrect cleanup usage of kfree - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d5abcc33ee76bc26d58b39dc1a097e43a99dd438
generic

crypto: ccp - Fix a crash due to incorrect cleanup usage of kfree - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9a3ace9b010ffd8c422c97844ae152f7c53d6b18
generic

crypto: ccp - Fix a crash due to incorrect cleanup usage of kfree - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/90f9090e3e744a8fe3bb6fa0e61f577347728b0b

Vendor Advisories for CVE-2026-45959(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 8× in last 7d / 47× 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 114 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-45959?
CVE-2026-45959 is a high vulnerability published on May 27, 2026. In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - Fix a crash due to incorrect cleanup usage of kfree Annotating a local pointer variable, which will be assigned with the kmalloc-family functions, with the cleanup(kfree) attribute will make the address of the local…
When was CVE-2026-45959 disclosed?
CVE-2026-45959 was first published in the National Vulnerability Database on May 27, 2026, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-45959 actively exploited?
CVE-2026-45959 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-45959?
CVE-2026-45959 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-45959?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-45959, 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.

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