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
Trending — 4 sources updated this week
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 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)
EPSS
1.7%
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-tools-azure-edge (6.8.0-1059.65~22.04.1) @ jammy2026-07-16ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1059.65+fips1) @ noble2026-07-16ubuntu
ubuntulinux-virtual-6.8 (6.8.0-124.124) @ noble2026-07-16ubuntu
ubuntulinux-tools-lowlatency-hwe-20.04-edge (6.8.0-134.134.1) @ noble2026-07-16ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1032.33) @ noble2026-07-16ubuntu

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 13× in last 7d / 95× 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 204 total refreshes for this CVE.

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

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 1.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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

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