CVE-2026-31527

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-04-22. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
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

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:

driver core: platform: use generic driver_override infrastructure

When a driver is probed through __driver_attach(), the bus' match() callback is called without the device lock held, thus accessing the driver_override field without a lock, which can cause a UAF.

Fix this by using the driver-core driver_override infrastructure taking care of proper locking internally.

Note that calling match() from __driver_attach() without the device lock held is intentional. [1]

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

April 22, 2026

Last Modified

June 1, 2026

Advisory Details (5)

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

driver core: platform: use generic driver_override infrastructure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/edee7ee5a14c3b33f6d54641f5af5c5e9180992d
generic

driver core: platform: use generic driver_override infrastructure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9a6086d2a828dd2ff74cf9abcae456670febd71f
generic

driver core: platform: use generic driver_override infrastructure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7c02a9bd7d14a89065fcf672b86d8e1d1a41d3b1
generic

driver core: platform: use generic driver_override infrastructure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/492349e5e4a369a8b62781100a3ade470bf1ce6b
generic

driver core: platform: use generic driver_override infrastructure - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2b38efc05bf7a8568ec74bfffea0f5cfa62bc01d

Vendor Advisories for CVE-2026-31527(2)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
linuxKernel @ 6.6.142—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~rc5-1~exp1 (335 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.85-1~bpo12+1 (17 versions)6.12.85-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 6.19~rc8-1~exp1 (121 versions)6.19.11-1—

Weakness Classification(1)

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

All Vendor Advisories

(13)

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 5× in last 7d / 61× 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 215 total refreshes for this CVE.

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

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

Frequently asked(5)

What is CVE-2026-31527?
CVE-2026-31527 is a high vulnerability published on April 22, 2026. In the Linux kernel, the following vulnerability has been resolved: driver core: platform: use generic driver_override infrastructure When a driver is probed through driver_attach(), the bus' match() callback is called without the device lock held, thus accessing the driver_override field without a…
When was CVE-2026-31527 disclosed?
CVE-2026-31527 was first published in the National Vulnerability Database on April 22, 2026, with the most recent update on June 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-31527 actively exploited?
CVE-2026-31527 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 97.2% of all scored CVEs.
What is the CVSS score of CVE-2026-31527?
CVE-2026-31527 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-31527?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-31527, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-31527

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