CVE-2025-40354

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2025-12-16. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 6 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

drm/amd/display: increase max link count and fix link->enc NULL pointer access

[why] 1.) dc->links[MAX_LINKS] array size smaller than actual requested. max_connector + max_dpia + 4 virtual = 14. increase from 12 to 14.

2.) hw_init() access null LINK_ENC for dpia non display_endpoint.

(cherry picked from commit d7f5a61e1b04ed87b008c8d327649d184dc5bb45)

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

December 16, 2025

Last Modified

July 30, 2026

Advisory Details (3)

Auto-updated Jul 30, 2026
No patch confirmed yet.
generic

drm/amd/display: increase max link count and fix link->enc NULL pointer access - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f28092be4e12b7df9e4f415d25bf0d767bc2d9ed
generic

drm/amd/display: increase max link count and fix link->enc NULL pointer access - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bec947cbe9a65783adb475a5fb47980d7b4f4796
generic

drm/amd/display: increase max link count and fix link->enc NULL pointer access - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a3fc0d36cfb927f8986b83bf5fba47dbedad3c63

Vendor Advisories for CVE-2025-40354(1)

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

Patch Availability(6)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-oem-6.17 (6.17.0-1011.11) @ noble2026-07-30ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.17.0-14.14) @ questing2026-07-30ubuntu
ubuntulinux-tools-azure-6.17 (6.17.0-1008.8) @ questing2026-07-30ubuntu
ubuntulinux-tools-gcp-64k-6.17 (6.17.0-1007.7) @ questing2026-07-30ubuntu
ubuntulinux-tools-oracle-64k-6.17 (6.17.0-1007.7) @ questing2026-07-30ubuntu
linuxKernel @ 6.12.56—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

(5)

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 15× 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 134 total refreshes for this CVE.

  1. 2026-08-01 04:15 UTCEPSS rescore
  2. 2026-07-30 16:27 UTCEPSS rescore
  3. 2026-07-30 06:48 UTCEG score recompute
  4. 2026-07-30 06:48 UTCVendor advisory
  5. 2026-07-30 06:48 UTCGHSA enrichment
  6. 2026-07-30 06:23 UTCEG score recompute▲ 7.80
  7. 2026-07-30 06:23 UTCVendor advisory
  8. 2026-07-30 06:23 UTCGHSA enrichment
  9. 2026-07-30 06:18 UTCMITRE cvelistV5CVSS v3 → 7.8 · severity → HIGH
  10. 2026-07-30 01:29 UTCEPSS rescore
  11. 2026-07-28 15:35 UTCEPSS rescore
  12. 2026-07-27 04:39 UTCOSV refresh
  13. 2026-07-26 14:54 UTCEPSS rescore
  14. 2026-07-25 14:17 UTCEPSS rescore
  15. 2026-07-25 14:17 UTCEPSS rescore
  16. 2026-07-24 14:17 UTCEPSS rescore
  17. 2026-07-23 02:55 UTCEG score recompute
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  20. 2026-07-21 15:24 UTCEPSS rescore
  21. 2026-07-20 17:07 UTCEPSS rescore
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  24. 2026-07-18 10:04 UTCEPSS rescore
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  1. 2026-07-16 17:02 UTCEPSS rescore
  2. 2026-07-15 16:57 UTCEPSS rescore
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  4. 2026-07-15 01:59 UTCEPSS rescore
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  6. 2026-07-13 22:29 UTCEPSS rescore
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  8. 2026-07-13 06:12 UTCEPSS rescore
  9. 2026-07-12 05:46 UTCEPSS rescore
  10. 2026-07-11 08:27 UTCEPSS rescore
  11. 2026-07-11 08:27 UTCEPSS rescore
  12. 2026-07-09 23:17 UTCOSV refresh
  13. 2026-07-09 19:09 UTCEPSS rescore
  14. 2026-07-09 19:09 UTCEPSS rescore
  15. 2026-07-07 13:45 UTCEPSS rescore
  16. 2026-07-06 16:27 UTCEPSS rescore
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  18. 2026-07-06 02:23 UTCEPSS rescore
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  20. 2026-07-04 06:30 UTCEPSS rescore
  21. 2026-07-01 15:06 UTCEPSS rescore
  22. 2026-07-01 15:06 UTCEPSS rescore
  23. 2026-06-30 23:22 UTCEPSS rescore
  24. 2026-06-30 23:22 UTCEPSS rescore
  25. 2026-06-29 14:06 UTCEPSS rescore
  26. 2026-06-29 14:06 UTCEPSS rescore
  27. 2026-06-28 14:07 UTCEPSS rescore
  28. 2026-06-28 14:07 UTCEPSS rescore
  29. 2026-06-28 04:55 UTCEPSS rescore
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  31. 2026-06-27 03:08 UTCEPSS rescore
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  35. 2026-06-24 14:04 UTCEPSS rescore
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  39. 2026-06-22 14:25 UTCEPSS rescore
  40. 2026-06-22 14:25 UTCEPSS rescore
  41. 2026-06-21 14:56 UTCEPSS rescore
  42. 2026-06-21 14:56 UTCEPSS rescore
  43. 2026-06-21 09:31 UTCOSV refresh
  44. 2026-06-19 19:25 UTCEPSS rescore
  45. 2026-06-19 19:25 UTCEPSS rescore
  46. 2026-06-18 17:52 UTCEPSS rescore
  47. 2026-06-18 17:52 UTCEPSS rescore
  48. 2026-06-17 17:52 UTCEPSS rescore
  49. 2026-06-16 17:52 UTCEPSS rescore
  50. 2026-06-16 17:52 UTCEPSS rescore
  51. 2026-06-14 23:17 UTCEPSS rescore
  52. 2026-06-13 23:00 UTCEPSS rescore
  53. 2026-06-12 23:11 UTCEPSS rescore
  54. 2026-06-11 14:00 UTCEPSS rescore
  55. 2026-06-10 22:18 UTCEPSS rescore
  56. 2026-06-10 13:22 UTCEPSS rescore
  57. 2026-06-08 14:16 UTCEPSS rescore
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  59. 2026-06-07 15:24 UTCEPSS rescore
  60. 2026-06-06 13:47 UTCEPSS rescore
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  68. 2026-06-02 20:12 UTCEPSS rescore
  69. 2026-06-02 00:09 UTCOSV refresh
  70. 2026-06-01 13:51 UTCEPSS rescore
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  72. 2026-05-31 22:30 UTCEPSS rescore
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  74. 2026-05-31 00:16 UTCEPSS rescore
  75. 2026-05-29 13:44 UTCEPSS rescore

Frequently asked(5)

What is CVE-2025-40354?
CVE-2025-40354 is a high vulnerability published on December 16, 2025. In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: increase max link count and fix link->enc NULL pointer access [why] 1.) dc->links[MAX_LINKS] array size smaller than actual requested. maxconnector + maxdpia + 4 virtual = 14. increase from 12 to 14. 2.) hwinit()…
When was CVE-2025-40354 disclosed?
CVE-2025-40354 was first published in the National Vulnerability Database on December 16, 2025, with the most recent update on July 30, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-40354 actively exploited?
CVE-2025-40354 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 96.8% of all scored CVEs.
What is the CVSS score of CVE-2025-40354?
CVE-2025-40354 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2025-40354?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-40354, 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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