CVE-2026-43372

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-05-08. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

net: dsa: microchip: Fix error path in PTP IRQ setup

If request_threaded_irq() fails during the PTP message IRQ setup, the newly created IRQ mapping is never disposed. Indeed, the ksz_ptp_irq_setup()'s error path only frees the mappings that were successfully set up.

Dispose the newly created mapping if the associated request_threaded_irq() fails at setup.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

May 8, 2026

Last Modified

May 15, 2026

Advisory Details (5)

Auto-updated May 15, 2026
No patch confirmed yet.
generic

net: dsa: microchip: Fix error path in PTP IRQ setup - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e80fef36c676c947072dabeb5803ae59d92ba493
generic

net: dsa: microchip: Fix error path in PTP IRQ setup - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c2d1d41e0e8ec447d40a5752844fc5fb0b23db27
generic

net: dsa: microchip: Fix error path in PTP IRQ setup - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/99c8c16a4aad0b37293cae213e15957c573cf79b
generic

net: dsa: microchip: Fix error path in PTP IRQ setup - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6c58a9fdb0d0e1011aa02455d26d6ebea251979b
generic

net: dsa: microchip: Fix error path in PTP IRQ setup - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3704ac6a0d9a78f66a187515a8ca3faedaf01cc5

Vendor Advisories for CVE-2026-43372(1)

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

Patch Availability(15)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2050.52) @ noble2026-08-23ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-08-23ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-08-23ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-08-23ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-08-23ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-08-23ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-08-23ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-08-23ubuntu
linuxKernel @ 6.6.130—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

(2 across 2 ecosystems)
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 (119 versions)6.19.10-1—

All Vendor Advisories

(14)

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 5× in last 7d / 55× 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 179 total refreshes for this CVE.

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

Related CVEs(same product + same vendor)

Frequently asked(5)

What is CVE-2026-43372?
CVE-2026-43372 is a medium vulnerability published on May 8, 2026. In the Linux kernel, the following vulnerability has been resolved: net: dsa: microchip: Fix error path in PTP IRQ setup If requestthreadedirq() fails during the PTP message IRQ setup, the newly created IRQ mapping is never disposed. Indeed, the kszptpirq_setup()'s error path only frees the…
When was CVE-2026-43372 disclosed?
CVE-2026-43372 was first published in the National Vulnerability Database on May 8, 2026, with the most recent update on May 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43372 actively exploited?
CVE-2026-43372 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 97.8% of all scored CVEs.
What is the CVSS score of CVE-2026-43372?
CVE-2026-43372 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-43372?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43372, 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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