CVE-2026-43126

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-06. 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:

ALSA: mixer: oss: Add card disconnect checkpoints

ALSA OSS mixer layer calls the kcontrol ops rather individually, and pending calls might be not always caught at disconnecting the device.

For avoiding the potential UAF scenarios, add sanity checks of the card disconnection at each entry point of OSS mixer accesses. The rwsem is taken just before that check, hence the rest context should be covered by that properly.

CVSS v3
7.8
EG Score
7.8(medium)
EPSS
2.9%
KEV
Not listed

Published

May 6, 2026

Last Modified

May 8, 2026

Advisory Details (4)

Auto-updated May 8, 2026
No patch confirmed yet.
generic

ALSA: mixer: oss: Add card disconnect checkpoints - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e6645e625480cdf1079a4265f758d13b70721029
generic

ALSA: mixer: oss: Add card disconnect checkpoints - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ae583f113d15fa97e5234133c20d09f8e6214e47
generic

ALSA: mixer: oss: Add card disconnect checkpoints - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8c097cf736993454acf3f711a3b376d6c7ad8965
generic

ALSA: mixer: oss: Add card disconnect checkpoints - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/084d5d44418148662365eced3e126ad1a81ee3e2

Vendor Advisories for CVE-2026-43126(1)

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 6× in last 7d / 32× 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 124 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-43126?
CVE-2026-43126 is a high vulnerability published on May 6, 2026. In the Linux kernel, the following vulnerability has been resolved: ALSA: mixer: oss: Add card disconnect checkpoints ALSA OSS mixer layer calls the kcontrol ops rather individually, and pending calls might be not always caught at disconnecting the device. For avoiding the potential UAF scenarios,…
When was CVE-2026-43126 disclosed?
CVE-2026-43126 was first published in the National Vulnerability Database on May 6, 2026, with the most recent update on May 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43126 actively exploited?
CVE-2026-43126 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-43126?
CVE-2026-43126 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-43126?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43126, 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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