CVE-2026-43296

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:

octeontx2-af: Workaround SQM/PSE stalls by disabling sticky

NIX SQ manager sticky mode is known to cause stalls when multiple SQs share an SMQ and transmit concurrently. Additionally, PSE may deadlock on transitions between sticky and non-sticky transmissions. There is also a credit drop issue observed when certain condition clocks are gated.

work around these hardware errata by:

  • Disabling SQM sticky operation:
  • Clear TM6 (bit 15)
  • Clear TM11 (bit 14)
  • Disabling sticky → non-sticky transition path that can deadlock PSE:
  • Clear TM5 (bit 23)
  • Preventing credit drops by keeping the control-flow clock enabled:
  • Set TM9 (bit 21)

These changes are applied via NIX_AF_SQM_DBG_CTL_STATUS. With this configuration the SQM/PSE maintain forward progress under load without credit loss, at the cost of disabling sticky optimizations.

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
33%
KEV
Not listed

Published

May 8, 2026

Last Modified

August 5, 2026

Advisory Details (8)

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

octeontx2-af: Workaround SQM/PSE stalls by disabling sticky - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d9b549b6951ba178ec14339a031cae65f4e43fe1
generic

octeontx2-af: Workaround SQM/PSE stalls by disabling sticky - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d0b3c8a80336029d9356f429151eb27922d80a3c
generic

octeontx2-af: Workaround SQM/PSE stalls by disabling sticky - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cec2ceb35ce7bc874c43812bb39200d6cf691b87
generic

octeontx2-af: Workaround SQM/PSE stalls by disabling sticky - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b7eba260a34e854e2487b8363c11976f082df00d
generic

octeontx2-af: Workaround SQM/PSE stalls by disabling sticky - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9a3fd301329474f449e75f86d8a4f6b9c603fd6c
generic

octeontx2-af: Workaround SQM/PSE stalls by disabling sticky - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8052d0587fb14b85539c3a14a226586c0c3d6b4c
generic

octeontx2-af: Workaround SQM/PSE stalls by disabling sticky - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/70e9a5760abfb6338d63994d4de6b0778ec795d6
generic

octeontx2-af: Workaround SQM/PSE stalls by disabling sticky - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/36cc5a5e0178d5fb79e04173b8aa623b0108819a

Vendor Advisories for CVE-2026-43296(1)

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

Patch Availability(25)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-6.8 (6.8.0-134.134) @ noble2026-08-23ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1058.61.1) @ noble2026-08-23ubuntu
ubuntulinux-tools-nvidia-tegra-rt-6.8 (6.8.0-1029.30) @ noble2026-08-23ubuntu
ubuntulinux-tools-lowlatency-hwe-20.04-edge (6.8.0-134.134.1) @ noble2026-08-23ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1032.33) @ noble2026-08-23ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2049.50) @ noble2026-08-23ubuntu
ubuntulinux-tools-raspi-6.8 (6.8.0-1060.64) @ noble2026-08-23ubuntu
ubuntulinux-tools-fips-6.8 (6.8.0-134.134+fips1) @ noble2026-08-23ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-08-23ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-08-23ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-08-23ubuntu
ubuntulinux-tools-ibm-edge (5.15.0.1106.110~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-azure-edge (6.8.0-1063.71~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-23ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-08-23ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-08-23ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-23ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-08-23ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-08-23ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1104.108) @ jammy2026-08-23ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-08-23ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1112.122~20.04.1) @ focal2026-08-23ubuntu
linuxKernel @ 5.10.252—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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
linux5.10.103-1 ... 5.10.92-2 (53 versions)5.10.257-1—
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 (116 versions)6.19.6-1—

Weakness Classification(1)

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

All Vendor Advisories

(24)

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 / 27× 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 231 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-43296?
CVE-2026-43296 is a high vulnerability published on May 8, 2026. In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: Workaround SQM/PSE stalls by disabling sticky NIX SQ manager sticky mode is known to cause stalls when multiple SQs share an SMQ and transmit concurrently. Additionally, PSE may deadlock on transitions between sticky…
When was CVE-2026-43296 disclosed?
CVE-2026-43296 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-2026-43296 actively exploited?
CVE-2026-43296 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 67.4% of all scored CVEs.
What is the CVSS score of CVE-2026-43296?
CVE-2026-43296 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-43296?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43296, 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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