CVE-2025-40129

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2025-11-12. the CNA's CVSS baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
Trending — 5 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

A fix is available — apply it.

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

sunrpc: fix null pointer dereference on zero-length checksum

In xdr_stream_decode_opaque_auth(), zero-length checksum.len causes checksum.data to be set to NULL. This triggers a NPD when accessing checksum.data in gss_krb5_verify_mic_v2(). This patch ensures that the value of checksum.len is not less than XDR_UNIT.

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

November 12, 2025

Last Modified

August 5, 2026

Advisory Details (4)

Auto-updated Jul 31, 2026
No patch confirmed yet.
generic

sunrpc: fix null pointer dereference on zero-length checksum - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/affc03d44921f493deaae1d33151e3067a6f9f8f
generic

sunrpc: fix null pointer dereference on zero-length checksum - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ab9a70cd2386a0d70c164b0905dd66bc9af52e77
generic

sunrpc: fix null pointer dereference on zero-length checksum - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/81cec07d303186d0d8c623ef8b5ecd3b81e94cf6
generic

sunrpc: fix null pointer dereference on zero-length checksum - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6df164e29bd4e6505c5a2e0e5f1e1f6957a16a42

Vendor Advisories for CVE-2025-40129(1)

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

Patch Availability(16)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-24.04-edge (6.17.0-14.14) @ questing2026-05-21ubuntu
ubuntulinux-tools-gcp-64k-6.17 (6.17.0-1007.7) @ questing2026-05-21ubuntu
ubuntulinux-tools-oem-6.17 (6.17.0-1011.11) @ noble2026-05-21ubuntu
ubuntulinux-virtual-6.8 (6.8.0-106.106) @ noble2026-05-21ubuntu
ubuntulinux-tools-oracle-64k-6.17 (6.17.0-1007.7) @ questing2026-05-21ubuntu
ubuntulinux-tools-nvidia-hwe-22.04-edge (6.8.0-1049.52~22.04.1) @ jammy2026-05-21ubuntu
ubuntulinux-tools-azure-6.17 (6.17.0-1008.8) @ questing2026-05-21ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1052.55+fips1) @ noble2026-05-21ubuntu
ubuntulinux-tools-realtime-hwe-22.04 (6.8.1-1045.46~22.04.1) @ jammy2026-05-21ubuntu
ubuntulinux-tools-aws-edge (6.8.0-1050.53~22.04.1) @ jammy2026-05-21ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1051.57) @ noble2026-05-21ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2040.41) @ noble2026-05-21ubuntu
ubuntulinux-tools-azure-edge (6.8.0-1051.57~22.04.1) @ jammy2026-05-21ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1029.30) @ noble2026-05-21ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1052.58+fips1) @ noble2026-05-21ubuntu
linuxKernel @ 6.6.112—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.

All Vendor Advisories

(15)

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 13× 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 141 total refreshes for this CVE.

  1. 2026-08-05 12:52 UTCEG score recompute
  2. 2026-08-05 12:52 UTCVendor advisory
  3. 2026-08-05 12:52 UTCGHSA enrichment
  4. 2026-08-04 15:09 UTCEPSS rescore
  5. 2026-08-04 10:37 UTCEPSS rescore
  6. 2026-08-03 10:35 UTCEPSS rescore
  7. 2026-08-02 02:26 UTCEPSS rescore
  8. 2026-08-01 04:15 UTCEPSS rescore
  9. 2026-07-30 16:27 UTCEPSS rescore
  10. 2026-07-30 06:28 UTCEG score recompute▲ 7.50
  11. 2026-07-30 06:28 UTCGHSA enrichment
  12. 2026-07-30 06:18 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  13. 2026-07-30 01:29 UTCEPSS rescore
  14. 2026-07-28 15:35 UTCEPSS rescore
  15. 2026-07-27 07:39 UTCOSV refresh
  16. 2026-07-26 14:54 UTCEPSS rescore
  17. 2026-07-25 14:17 UTCEPSS rescore
  18. 2026-07-25 14:17 UTCEPSS rescore
  19. 2026-07-24 14:17 UTCEPSS rescore
  20. 2026-07-23 02:55 UTCEG score recompute
  21. 2026-07-22 14:07 UTCEPSS rescore
  22. 2026-07-22 14:07 UTCEPSS rescore
  23. 2026-07-21 15:24 UTCEPSS rescore
  24. 2026-07-20 17:07 UTCEPSS rescore
  25. 2026-07-19 14:30 UTCEPSS rescore
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  1. 2026-07-19 14:30 UTCEPSS rescore
  2. 2026-07-19 02:28 UTCEPSS rescore
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  4. 2026-07-18 10:04 UTCEPSS rescore
  5. 2026-07-18 10:04 UTCEPSS rescore
  6. 2026-07-16 17:02 UTCEPSS rescore
  7. 2026-07-15 16:57 UTCEPSS rescore
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  9. 2026-07-15 01:59 UTCEPSS rescore
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  11. 2026-07-13 22:29 UTCEPSS rescore
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  13. 2026-07-13 06:12 UTCEPSS rescore
  14. 2026-07-12 05:46 UTCEPSS rescore
  15. 2026-07-11 08:27 UTCEPSS rescore
  16. 2026-07-11 08:27 UTCEPSS rescore
  17. 2026-07-10 02:15 UTCOSV refresh
  18. 2026-07-09 19:09 UTCEPSS rescore
  19. 2026-07-09 19:09 UTCEPSS rescore
  20. 2026-07-07 13:45 UTCEPSS rescore
  21. 2026-07-06 16:27 UTCEPSS rescore
  22. 2026-07-06 16:27 UTCEPSS rescore
  23. 2026-07-06 02:23 UTCEPSS rescore
  24. 2026-07-05 02:30 UTCEPSS rescore
  25. 2026-07-04 06:30 UTCEPSS rescore
  26. 2026-07-01 15:06 UTCEPSS rescore
  27. 2026-07-01 15:06 UTCEPSS rescore
  28. 2026-06-30 23:22 UTCEPSS rescore
  29. 2026-06-30 23:22 UTCEPSS rescore
  30. 2026-06-29 14:06 UTCEPSS rescore
  31. 2026-06-29 14:06 UTCEPSS rescore
  32. 2026-06-28 14:07 UTCEPSS rescore
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  34. 2026-06-28 04:55 UTCEPSS rescore
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  36. 2026-06-27 03:08 UTCEPSS rescore
  37. 2026-06-27 03:08 UTCEPSS rescore
  38. 2026-06-25 13:49 UTCEPSS rescore
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  40. 2026-06-24 14:04 UTCEPSS rescore
  41. 2026-06-24 14:04 UTCEPSS rescore
  42. 2026-06-23 21:32 UTCEPSS rescore
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  44. 2026-06-22 14:25 UTCEPSS rescore
  45. 2026-06-22 14:25 UTCEPSS rescore
  46. 2026-06-21 14:56 UTCEPSS rescore
  47. 2026-06-21 14:56 UTCEPSS rescore
  48. 2026-06-21 12:31 UTCOSV refresh
  49. 2026-06-21 01:59 UTCEPSS rescore
  50. 2026-06-21 01:59 UTCEPSS rescore
  51. 2026-06-19 19:25 UTCEPSS rescore
  52. 2026-06-19 19:25 UTCEPSS rescore
  53. 2026-06-18 17:52 UTCEPSS rescore
  54. 2026-06-18 17:52 UTCEPSS rescore
  55. 2026-06-17 17:52 UTCEPSS rescore
  56. 2026-06-16 17:52 UTCEPSS rescore
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  58. 2026-06-14 23:17 UTCEPSS rescore
  59. 2026-06-13 23:00 UTCEPSS rescore
  60. 2026-06-12 23:11 UTCEPSS rescore
  61. 2026-06-11 14:00 UTCEPSS rescore
  62. 2026-06-10 22:18 UTCEPSS rescore
  63. 2026-06-10 13:22 UTCEPSS rescore
  64. 2026-06-08 14:16 UTCEPSS rescore
  65. 2026-06-08 14:16 UTCEPSS rescore
  66. 2026-06-07 15:24 UTCEPSS rescore
  67. 2026-06-06 13:47 UTCEPSS rescore
  68. 2026-06-06 13:47 UTCEPSS rescore
  69. 2026-06-05 22:46 UTCEPSS rescore
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  71. 2026-06-05 06:10 UTCEPSS rescore
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  73. 2026-06-04 13:12 UTCEPSS rescore
  74. 2026-06-04 13:12 UTCEPSS rescore
  75. 2026-06-02 20:12 UTCEPSS rescore

Related CVEs(same product + same vendor)

Frequently asked(5)

What is CVE-2025-40129?
CVE-2025-40129 is a high vulnerability published on November 12, 2025. In the Linux kernel, the following vulnerability has been resolved: sunrpc: fix null pointer dereference on zero-length checksum In xdrstreamdecodeopaqueauth(), zero-length checksum.len causes checksum.data to be set to NULL. This triggers a NPD when accessing checksum.data in gsskrb5verifymicv2().…
When was CVE-2025-40129 disclosed?
CVE-2025-40129 was first published in the National Vulnerability Database on November 12, 2025, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-40129 actively exploited?
CVE-2025-40129 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 58.9% of all scored CVEs.
What is the CVSS score of CVE-2025-40129?
CVE-2025-40129 has a CVSS v4.0 base score of 7.5 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2025-40129?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-40129, 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

Explore the affected products and dependency analysis for CVE-2025-40129

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