CVE-2026-47331

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-28. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
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.

Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An unprivileged local user could trigger the race condition that can lead to a use-after-free (UAF) and, theoretically, arbitrary code execution.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

May 28, 2026

Last Modified

June 9, 2026

Advisory Details (1)

Auto-updated May 28, 2026
No patch confirmed yet.
generic

~ubuntu-kernel/ubuntu/+source/linux/+git/noble - [no description]

https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/noble/commit/?id=5e5cd4759b63363373faf1ce15d1cab3606d6ec8

Vendor Advisories for CVE-2026-47331(1)

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

Patch Availability(5)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-6.8 (6.8.0-124.124) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1059.65+fips1) @ noble2026-08-25ubuntu
ubuntulinux-tools-azure-edge (6.8.0-1059.65~22.04.1) @ jammy2026-08-25ubuntu
ubuntulinux-tools-lowlatency-hwe-20.04-edge (6.8.0-134.134.1) @ noble2026-08-25ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1032.33) @ noble2026-08-25ubuntu

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.

Weakness Classification(1)

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

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 3× in last 7d / 84× 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 281 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-47331?
CVE-2026-47331 is a high vulnerability published on May 28, 2026. Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An unprivileged local user could trigger the race condition that can lead to a use-after-free (UAF) and, theoretically, arbitrary code execution.
When was CVE-2026-47331 disclosed?
CVE-2026-47331 was first published in the National Vulnerability Database on May 28, 2026, with the most recent update on June 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-47331 actively exploited?
CVE-2026-47331 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 98.4% of all scored CVEs.
What is the CVSS score of CVE-2026-47331?
CVE-2026-47331 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-47331?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-47331, 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-2026-47331

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