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
7.8EG
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:

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)
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

August 5, 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.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
linuxKernel @ 5.10.253—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

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (53 versions)5.10.257-1—
linux-6.16.1.106-3~deb11u1 ... 6.1.164-1~deb11u1 (16 versions)6.1.170-1~deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (48 versions)6.1.170-1—
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 (124 versions)6.19.11-1—

Weakness Classification(1)

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

Additional Vendor Advisories

(24)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 5× in last 7d / 29× 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 258 total refreshes for this CVE.

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

Related CVEs(same product + 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 August 5, 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 0% probability of exploitation in the next 30 days, which ranks it in the top 97.4% of all scored CVEs.
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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-31473

Explore →

Is Your Infrastructure Affected by CVE-2026-31473?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs