CVE-2026-64312

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-25. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: 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:

crypto: pcrypt - restore callback for non-parallel fallback

pcrypt installs pcrypt_aead_done() on the child AEAD request before trying to submit it through padata. If padata_do_parallel() returns -EBUSY, pcrypt falls back to calling the child AEAD directly.

That fallback must not keep the padata completion callback. Otherwise an asynchronous completion runs pcrypt_aead_done() even though the request was never enrolled in padata.

Restore the original request callback and callback data before calling the child AEAD directly. This keeps the fallback path aligned with a direct AEAD request while leaving the parallel path unchanged.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity75% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
41%
KEV
Not listed

Published

July 25, 2026

Last Modified

August 17, 2026

Advisory Details (8)

Auto-updated Jul 27, 2026
No patch confirmed yet.
generic

crypto: pcrypt - restore callback for non-parallel fallback - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ed459fe319376e876de433d12b6c6772e612ca36
generic

crypto: pcrypt - restore callback for non-parallel fallback - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c4bd2f4c35b0e15b6040c2f7e7e7986780c066cf
generic

crypto: pcrypt - restore callback for non-parallel fallback - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ae93c5b3e2a2968b56d772ca1d06615927b7cc36
generic

crypto: pcrypt - restore callback for non-parallel fallback - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/83fa1397d5853de1e27dd52ec44b068ff358ca18
generic

crypto: pcrypt - restore callback for non-parallel fallback - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/82789a44415e3e31168229421b138278dfb16412
generic

crypto: pcrypt - restore callback for non-parallel fallback - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/81ce16d938db9b88cdc231522c0358395ae8c6b5
generic

crypto: pcrypt - restore callback for non-parallel fallback - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4711ca06bd169a2cbc9cc59a6de2ed512c41a880
generic

crypto: pcrypt - restore callback for non-parallel fallback - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3920c5f6edc341729d20d0507e466c6d3b11f372

Vendor Advisories for CVE-2026-64312(2)

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

Affected Packages

(6 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (55 versions)5.10.262-1—
linux-6.16.1.106-3~deb11u1 ... 6.1.177-1~deb11u1 (22 versions)6.1.180-1~deb11u1—
Debian:12(2)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (55 versions)6.1.180-1—
linux-6.12—6.12.100-1~deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.95-1~bpo12+1 (30 versions)6.12.96-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.1~rc7-1~exp1 (156 versions)7.1.4-1—

Data Freshness Timeline

(refreshed 19× in last 7d / 110× 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 138 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-64312?
CVE-2026-64312 is a high vulnerability published on July 25, 2026. In the Linux kernel, the following vulnerability has been resolved: crypto: pcrypt - restore callback for non-parallel fallback pcrypt installs pcryptaeaddone() on the child AEAD request before trying to submit it through padata. If padatadoparallel() returns -EBUSY, pcrypt falls back to calling…
When was CVE-2026-64312 disclosed?
CVE-2026-64312 was first published in the National Vulnerability Database on July 25, 2026, with the most recent update on August 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-64312 actively exploited?
CVE-2026-64312 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 59.3% of all scored CVEs.
What is the CVSS score of CVE-2026-64312?
CVE-2026-64312 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-64312?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-64312, 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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