CVE-2026-31473

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
7.8
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:

media: mc, v4l2: serialize REINIT and REQBUFS with req_queue_mutex

MEDIA_REQUEST_IOC_REINIT can run concurrently with VIDIOC_REQBUFS(0) queue teardown paths. This can race request object cleanup against vb2 queue cancellation and lead to use-after-free reports.

We already serialize request queueing against STREAMON/OFF with req_queue_mutex. Extend that serialization to REQBUFS, and also take the same mutex in media_request_ioctl_reinit() so REINIT is in the same exclusion domain.

This keeps request cleanup and queue cancellation from running in parallel for request-capable devices.

CVSS v3
7.8
EG Score
7.8(medium)
EPSS
2.6%
KEV
Not listed

Published

April 22, 2026

Last Modified

April 27, 2026

Advisory Details (8)

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

media: mc, v4l2: serialize REINIT and REQBUFS with req_queue_mutex - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d8549a453d5bdc0a71de66ad47a1106703406a56
generic

media: mc, v4l2: serialize REINIT and REQBUFS with req_queue_mutex - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cf2023e84f0888f96f4b65dc0804e7f3651969c1
generic

media: mc, v4l2: serialize REINIT and REQBUFS with req_queue_mutex - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bef4f4a88b73e4cc550d25f665b8a9952af22773
generic

media: mc, v4l2: serialize REINIT and REQBUFS with req_queue_mutex - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/72b9e81e0203f03c40f3adb457f55bd4c8eb112d
generic

media: mc, v4l2: serialize REINIT and REQBUFS with req_queue_mutex - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/585fd9a2063dacce8b2820f675ef23d5d17434c5
generic

media: mc, v4l2: serialize REINIT and REQBUFS with req_queue_mutex - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/331242998a7ade5c2f65e14988901614629f3db5
generic

media: mc, v4l2: serialize REINIT and REQBUFS with req_queue_mutex - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2c685e99efb3b3bd2b78699fba6b1cf321975db0
generic

media: mc, v4l2: serialize REINIT and REQBUFS with req_queue_mutex - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1a0d9083c24fbd5d22f7100f09d11e4d696a5f01

Vendor Advisories for CVE-2026-31473(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 40× 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 161 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. 2026-07-13 06:13 UTCEPSS rescore
  7. 2026-07-13 06:13 UTCEPSS rescore
  8. 2026-07-12 05:46 UTCEPSS rescore
  9. 2026-07-11 08:27 UTCEPSS rescore
  10. 2026-07-09 19:10 UTCEPSS rescore
  11. 2026-07-08 15:15 UTCEPSS rescore
  12. 2026-07-07 13:46 UTCEPSS rescore
  13. 2026-07-06 16:27 UTCEPSS rescore
  14. 2026-07-06 16:27 UTCEPSS rescore
  15. 2026-07-04 06:31 UTCEPSS rescore
  16. 2026-07-01 15:06 UTCEPSS rescore
  17. 2026-06-30 23:22 UTCEPSS rescore
  18. 2026-06-29 14:06 UTCEPSS rescore
  19. 2026-06-29 14:06 UTCEPSS rescore
  20. 2026-06-28 14:07 UTCEPSS rescore
  21. 2026-06-28 14:07 UTCEPSS rescore
  22. 2026-06-28 04:56 UTCEPSS rescore
  23. 2026-06-28 04:56 UTCEPSS rescore
  24. 2026-06-27 03:08 UTCEPSS rescore
  25. 2026-06-25 13:49 UTCEPSS rescore
Show 75 more
  1. 2026-06-25 13:49 UTCEPSS rescore
  2. 2026-06-24 14:05 UTCEPSS rescore
  3. 2026-06-23 21:33 UTCEPSS rescore
  4. 2026-06-23 21:33 UTCEPSS rescore
  5. 2026-06-22 14:25 UTCEPSS rescore
  6. 2026-06-22 14:25 UTCEPSS rescore
  7. 2026-06-21 14:56 UTCEPSS rescore
  8. 2026-06-21 14:56 UTCEPSS rescore
  9. 2026-06-21 01:59 UTCEPSS rescore
  10. 2026-06-19 19:25 UTCEPSS rescore
  11. 2026-06-19 19:25 UTCEPSS rescore
  12. 2026-06-18 17:52 UTCEPSS rescore
  13. 2026-06-18 17:52 UTCEPSS rescore
  14. 2026-06-17 17:53 UTCEPSS rescore
  15. 2026-06-16 17:52 UTCEPSS rescore
  16. 2026-06-15 17:49 UTCEPSS rescore
  17. 2026-06-15 04:25 UTCEG score recompute
  18. 2026-06-15 04:25 UTCVendor advisory
  19. 2026-06-15 04:25 UTCGHSA enrichment
  20. 2026-06-14 23:18 UTCEPSS rescore
  21. 2026-06-14 16:51 UTCEG score recompute
  22. 2026-06-14 16:51 UTCVendor advisory
  23. 2026-06-14 16:50 UTCGHSA enrichment
  24. 2026-06-13 23:00 UTCEPSS rescore
  25. 2026-06-12 23:12 UTCEPSS rescore
  26. 2026-06-12 23:12 UTCEPSS rescore
  27. 2026-06-12 02:22 UTCEG score recompute
  28. 2026-06-12 02:22 UTCVendor advisory
  29. 2026-06-12 02:22 UTCGHSA enrichment
  30. 2026-06-11 14:48 UTCEG score recompute
  31. 2026-06-11 14:48 UTCVendor advisory
  32. 2026-06-11 14:48 UTCGHSA enrichment
  33. 2026-06-11 14:00 UTCEPSS rescore
  34. 2026-06-10 22:18 UTCEPSS rescore
  35. 2026-06-10 14:27 UTCEG score recompute
  36. 2026-06-10 14:27 UTCVendor advisory
  37. 2026-06-10 14:27 UTCGHSA enrichment
  38. 2026-06-10 13:22 UTCEPSS rescore
  39. 2026-06-10 02:54 UTCEG score recompute
  40. 2026-06-10 02:54 UTCVendor advisory
  41. 2026-06-10 02:54 UTCGHSA enrichment
  42. 2026-06-09 15:20 UTCEG score recompute
  43. 2026-06-09 15:20 UTCVendor advisory
  44. 2026-06-09 15:20 UTCGHSA enrichment
  45. 2026-06-09 03:47 UTCEG score recompute
  46. 2026-06-09 03:47 UTCVendor advisory
  47. 2026-06-09 03:47 UTCGHSA enrichment
  48. 2026-06-08 14:17 UTCEPSS rescore
  49. 2026-06-08 14:17 UTCEPSS rescore
  50. 2026-06-08 07:18 UTCEG score recompute
  51. 2026-06-08 07:18 UTCVendor advisory
  52. 2026-06-08 07:18 UTCGHSA enrichment
  53. 2026-06-07 19:45 UTCEG score recompute
  54. 2026-06-07 19:45 UTCVendor advisory
  55. 2026-06-07 19:45 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 08:10 UTCEG score recompute
  60. 2026-06-07 08:10 UTCVendor advisory
  61. 2026-06-07 08:10 UTCGHSA enrichment
  62. 2026-06-06 20:35 UTCEG score recompute
  63. 2026-06-06 20:35 UTCVendor advisory
  64. 2026-06-06 20:35 UTCGHSA enrichment
  65. 2026-06-06 13:47 UTCEPSS rescore
  66. 2026-06-06 13:47 UTCEPSS rescore
  67. 2026-06-06 05:33 UTCEG score recompute
  68. 2026-06-06 05:33 UTCVendor advisory
  69. 2026-06-06 05:33 UTCGHSA enrichment
  70. 2026-06-05 22:47 UTCEPSS rescore
  71. 2026-06-05 22:47 UTCEPSS rescore
  72. 2026-06-05 17:15 UTCEG score recompute
  73. 2026-06-05 17:15 UTCVendor advisory
  74. 2026-06-05 17:15 UTCGHSA enrichment
  75. 2026-06-05 06:10 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-31473?
CVE-2026-31473 is a high vulnerability published on April 22, 2026. In the Linux kernel, the following vulnerability has been resolved: media: mc, v4l2: serialize REINIT and REQBUFS with reqqueuemutex MEDIAREQUESTIOCREINIT can run concurrently with VIDIOCREQBUFS(0) queue teardown paths. This can race request object cleanup against vb2 queue cancellation and lead to…
When was CVE-2026-31473 disclosed?
CVE-2026-31473 was first published in the National Vulnerability Database on April 22, 2026, with the most recent update on April 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-31473 actively exploited?
CVE-2026-31473 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-31473?
CVE-2026-31473 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-31473?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-31473, 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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