CVE-2026-43345

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-05-08. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

A fix is available — apply it.

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

net: ipa: fix event ring index not programmed for IPA v5.0+

For IPA v5.0+, the event ring index field moved from CH_C_CNTXT_0 to CH_C_CNTXT_1. The v5.0 register definition intended to define this field in the CH_C_CNTXT_1 fmask array but used the old identifier of ERINDEX instead of CH_ERINDEX.

Without a valid event ring, GSI channels could never signal transfer completions. This caused gsi_channel_trans_quiesce() to block forever in wait_for_completion().

At least for IPA v5.2 this resolves an issue seen where runtime suspend, system suspend, and remoteproc stop all hanged forever. It also meant the IPA data path was completely non functional.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
29%
KEV
Not listed

Published

May 8, 2026

Last Modified

August 5, 2026

Advisory Details (5)

Auto-updated May 11, 2026
No patch confirmed yet.
generic

net: ipa: fix event ring index not programmed for IPA v5.0+ - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ae8343a19ccb051d519dbb3a9082ddea9f0551d3
generic

net: ipa: fix event ring index not programmed for IPA v5.0+ - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/56007972c0b1e783ca714d6f1f4d6e66e531d21f
generic

net: ipa: fix event ring index not programmed for IPA v5.0+ - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/34c988bb04cbdf093d2134e179433da49ffcd044
generic

net: ipa: fix event ring index not programmed for IPA v5.0+ - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2d2dc166d55148cfcf8ae67b415f8d6d110e6fca
generic

net: ipa: fix event ring index not programmed for IPA v5.0+ - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2bf18b643c4656413f7cfd5615af60a6b4e261da

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-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-08-23ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-08-23ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-08-23ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-23ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-08-23ubuntu
ubuntulinux-tools-ibm-edge (6.8.0-1061.62~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-23ubuntu
linuxKernel @ 6.6.136—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 (129 versions)6.19.14-1—

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 7× in last 7d / 30× 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 222 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 14:53 UTCOSV refresh
  4. 2026-09-11 14:53 UTCEPSS rescore
  5. 2026-09-11 09:37 UTCEPSS rescore
  6. 2026-09-10 09:34 UTCEPSS rescore
  7. 2026-09-08 22:00 UTCEPSS rescore
  8. 2026-09-07 16:01 UTCEPSS rescore
  9. 2026-09-06 13:47 UTCEPSS rescore
  10. 2026-09-04 05:06 UTCEPSS rescore
  11. 2026-09-02 14:12 UTCEPSS rescore
  12. 2026-09-01 13:54 UTCEPSS rescore
  13. 2026-08-30 19:17 UTCEPSS rescore
  14. 2026-08-30 01:22 UTCEPSS rescore
  15. 2026-08-28 21:41 UTCEPSS rescore
  16. 2026-08-27 14:25 UTCEPSS rescore
  17. 2026-08-26 14:46 UTCEPSS rescore
  18. 2026-08-25 13:49 UTCEPSS rescore
  19. 2026-08-23 19:14 UTCEG score recompute
  20. 2026-08-23 19:14 UTCVendor advisory
  21. 2026-08-23 19:13 UTCGHSA enrichment
  22. 2026-08-21 23:49 UTCEPSS rescore
  23. 2026-08-20 22:55 UTCEPSS rescore
  24. 2026-08-19 17:04 UTCEPSS rescore
  25. 2026-08-18 13:48 UTCEPSS rescore
Show 75 more
  1. 2026-08-17 13:47 UTCEPSS rescore
  2. 2026-08-17 11:55 UTCEG score recompute
  3. 2026-08-17 11:55 UTCVendor advisory
  4. 2026-08-17 11:55 UTCGHSA enrichment
  5. 2026-08-16 14:56 UTCEPSS rescore
  6. 2026-08-16 04:37 UTCEG score recompute
  7. 2026-08-16 04:37 UTCVendor advisory
  8. 2026-08-16 04:37 UTCGHSA enrichment
  9. 2026-08-16 02:14 UTCEPSS rescore
  10. 2026-08-15 01:30 UTCEPSS rescore
  11. 2026-08-14 14:57 UTCVendor advisory
  12. 2026-08-14 14:57 UTCGHSA enrichment
  13. 2026-08-14 03:11 UTCEG score recompute
  14. 2026-08-14 03:11 UTCVendor advisory
  15. 2026-08-14 03:11 UTCGHSA enrichment
  16. 2026-08-13 22:00 UTCEPSS rescore
  17. 2026-08-13 04:33 UTCVendor advisory
  18. 2026-08-13 04:33 UTCGHSA enrichment
  19. 2026-08-12 16:47 UTCEG score recompute
  20. 2026-08-12 16:47 UTCVendor advisory
  21. 2026-08-12 16:47 UTCGHSA enrichment
  22. 2026-08-12 13:51 UTCEPSS rescore
  23. 2026-08-11 15:52 UTCEG score recompute
  24. 2026-08-11 15:52 UTCVendor advisory
  25. 2026-08-11 15:52 UTCGHSA enrichment
  26. 2026-08-11 13:43 UTCEPSS rescore
  27. 2026-08-11 01:45 UTCEG score recompute
  28. 2026-08-11 01:45 UTCVendor advisory
  29. 2026-08-11 01:44 UTCGHSA enrichment
  30. 2026-08-11 00:00 UTCEPSS rescore
  31. 2026-08-10 13:58 UTCVendor advisory
  32. 2026-08-10 13:58 UTCGHSA enrichment
  33. 2026-08-10 01:59 UTCVendor advisory
  34. 2026-08-10 01:59 UTCGHSA enrichment
  35. 2026-08-09 14:13 UTCEG score recompute
  36. 2026-08-09 14:13 UTCVendor advisory
  37. 2026-08-09 14:12 UTCGHSA enrichment
  38. 2026-08-09 13:46 UTCEPSS rescore
  39. 2026-08-09 02:26 UTCEG score recompute
  40. 2026-08-09 02:26 UTCVendor advisory
  41. 2026-08-09 02:26 UTCGHSA enrichment
  42. 2026-08-08 16:37 UTCEPSS rescore
  43. 2026-08-08 13:07 UTCVendor advisory
  44. 2026-08-08 13:07 UTCGHSA enrichment
  45. 2026-08-08 01:18 UTCEG score recompute
  46. 2026-08-08 01:18 UTCVendor advisory
  47. 2026-08-08 01:18 UTCGHSA enrichment
  48. 2026-08-07 13:32 UTCVendor advisory
  49. 2026-08-07 13:32 UTCGHSA enrichment
  50. 2026-08-07 01:45 UTCEG score recompute
  51. 2026-08-07 01:45 UTCVendor advisory
  52. 2026-08-07 01:45 UTCGHSA enrichment
  53. 2026-08-06 13:46 UTCEPSS rescore
  54. 2026-08-06 13:23 UTCVendor advisory
  55. 2026-08-06 13:23 UTCGHSA enrichment
  56. 2026-08-06 01:36 UTCEG score recompute
  57. 2026-08-06 01:36 UTCVendor advisory
  58. 2026-08-06 01:36 UTCGHSA enrichment
  59. 2026-08-05 19:17 UTCEPSS rescore
  60. 2026-08-05 13:50 UTCEG score recompute
  61. 2026-08-05 13:50 UTCVendor advisory
  62. 2026-08-05 13:50 UTCGHSA enrichment
  63. 2026-08-04 15:10 UTCEPSS rescore
  64. 2026-08-04 10:38 UTCEPSS rescore
  65. 2026-08-03 19:33 UTCEG score recompute
  66. 2026-08-03 19:33 UTCVendor advisory
  67. 2026-08-03 19:33 UTCGHSA enrichment
  68. 2026-08-03 10:36 UTCEPSS rescore
  69. 2026-08-03 02:34 UTCVendor advisory
  70. 2026-08-03 02:34 UTCGHSA enrichment
  71. 2026-08-02 14:48 UTCVendor advisory
  72. 2026-08-02 14:48 UTCGHSA enrichment
  73. 2026-08-02 03:01 UTCEG score recompute
  74. 2026-08-02 03:01 UTCVendor advisory
  75. 2026-08-02 03:01 UTCGHSA enrichment

Related CVEs(same product + same vendor)

Frequently asked(5)

What is CVE-2026-43345?
CVE-2026-43345 is a high vulnerability published on May 8, 2026. In the Linux kernel, the following vulnerability has been resolved: net: ipa: fix event ring index not programmed for IPA v5.0+ For IPA v5.0+, the event ring index field moved from CHCCNTXT_0 to CHCCNTXT_1. The v5.0 register definition intended to define this field in the CHCCNTXT_1 fmask array but…
When was CVE-2026-43345 disclosed?
CVE-2026-43345 was first published in the National Vulnerability Database on May 8, 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-2026-43345 actively exploited?
CVE-2026-43345 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 71.4% of all scored CVEs.
What is the CVSS score of CVE-2026-43345?
CVE-2026-43345 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-43345?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43345, 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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