CVE-2026-31673

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-04-25. NVD baseline CVSS 7.8; sources differ by 0.0.

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

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:

af_unix: read UNIX_DIAG_VFS data under unix_state_lock

Exact UNIX diag lookups hold a reference to the socket, but not to u->path. Meanwhile, unix_release_sock() clears u->path under unix_state_lock() and drops the path reference after unlocking.

Read the inode and device numbers for UNIX_DIAG_VFS while holding unix_state_lock(), then emit the netlink attribute after dropping the lock.

This keeps the VFS data stable while the reply is being built.

CVSS v3
7.8
EG Score
7.8(medium)
EPSS
2.2%
KEV
Not listed

Published

April 25, 2026

Last Modified

June 1, 2026

Advisory Details (5)

Auto-updated May 7, 2026
No patch confirmed yet.
generic

af_unix: read UNIX_DIAG_VFS data under unix_state_lock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bdf206e740bf2919d818f132c8c9cc7ed91d11c0
generic

af_unix: read UNIX_DIAG_VFS data under unix_state_lock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b9232421a77a649c9376c99fdfc8cb7f79cad34c
generic

af_unix: read UNIX_DIAG_VFS data under unix_state_lock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/900a4e0910e98b8caef117d5df00471fa438dcf9
generic

af_unix: read UNIX_DIAG_VFS data under unix_state_lock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/39897df386376912d561d4946499379effa1e7ef
generic

af_unix: read UNIX_DIAG_VFS data under unix_state_lock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0c739f3785f84af695952c2bac8be2f45082c9b8

Vendor Advisories for CVE-2026-31673(2)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 37× 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 159 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-31673?
CVE-2026-31673 is a high vulnerability published on April 25, 2026. In the Linux kernel, the following vulnerability has been resolved: afunix: read UNIXDIAGVFS data under unixstate_lock Exact UNIX diag lookups hold a reference to the socket, but not to u->path. Meanwhile, unixreleasesock() clears u->path under unixstatelock() and drops the path reference after…
When was CVE-2026-31673 disclosed?
CVE-2026-31673 was first published in the National Vulnerability Database on April 25, 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-2026-31673 actively exploited?
CVE-2026-31673 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-31673?
CVE-2026-31673 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-31673?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-31673, 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.

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