CVE-2026-31679

HIGHNVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-04-25. NVD baseline CVSS 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

A fix is available — apply it.

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

openvswitch: validate MPLS set/set_masked payload length

validate_set() accepted OVS_KEY_ATTR_MPLS as variable-sized payload for SET/SET_MASKED actions. In action handling, OVS expects fixed-size MPLS key data (struct ovs_key_mpls).

Use the already normalized key_len (masked case included) and reject non-matching MPLS action key sizes.

Reject invalid MPLS action payload lengths early.

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
36(Track)
EG Risk 36/100SSVC: 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
Severity71% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

April 25, 2026

Last Modified

August 5, 2026

Advisory Details (8)

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

openvswitch: validate MPLS set/set_masked payload length - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c1f97152df8dfb17e855ddf0fc409b7bd13e9700
generic

openvswitch: validate MPLS set/set_masked payload length - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bd50c7484c3bb34097571c1334174fb8b7408036
generic

openvswitch: validate MPLS set/set_masked payload length - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/98de18d327ef8cbbb704980e359e4872d8c28997
generic

openvswitch: validate MPLS set/set_masked payload length - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8ed7b9930cbc3bc71f868fa79a68700ac88d586a
generic

openvswitch: validate MPLS set/set_masked payload length - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/68f32ef0683c8d1c05cd2e4f16818fa63ff59c6f
generic

openvswitch: validate MPLS set/set_masked payload length - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/546b68ac893595877ffbd7751e5c55fd1c43ede6
generic

openvswitch: validate MPLS set/set_masked payload length - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4cae986225f8b8679ad86b924918e7d75a96aa61
generic

openvswitch: validate MPLS set/set_masked payload length - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2ca33b88a79ca42f017ae0f7011280325655438e

Vendor Advisories for CVE-2026-31679(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-tools-azure-fips-6.8 (6.8.0-1063.71+fips2) @ noble2026-08-05ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-08-05ubuntu
ubuntulinux-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-08-05ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-08-05ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-08-05ubuntu
ubuntulinux-tools-aws-fips-6.8 (6.8.0-1061.64+fips1) @ noble2026-08-05ubuntu
ubuntulinux-tools-ibm-edge (5.15.0.1106.110~20.04.1) @ focal2026-08-05ubuntu
ubuntulinux-tools-aws-lts-24.04 (6.8.0-1061.64+1) @ noble2026-08-05ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1064.72+fips1) @ noble2026-08-05ubuntu
ubuntulinux-virtual-6.8 (6.8.0-136.136) @ noble2026-08-05ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-08-05ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1075 (5.15.0-1075.79) @ jammy2026-08-05ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-08-05ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1058.61) @ noble2026-08-05ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1058.61~22.04.1) @ jammy2026-08-05ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1059.62.1) @ noble2026-08-05ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-08-05ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-08-05ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1033.34) @ noble2026-08-05ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-08-05ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-08-05ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-08-05ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1104.108) @ jammy2026-08-05ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-08-05ubuntu
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—

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 / 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 264 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. 2026-09-04 02:59 UTCOSV refresh
  11. 2026-09-02 14:11 UTCEPSS rescore
  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. 2026-08-28 21:41 UTCEPSS rescore
  17. 2026-08-27 14:25 UTCEPSS rescore
  18. 2026-08-26 14:46 UTCEPSS rescore
  19. 2026-08-24 14:17 UTCEPSS rescore
  20. 2026-08-23 00:19 UTCEPSS rescore
  21. 2026-08-21 23:49 UTCEPSS rescore
  22. 2026-08-20 22:55 UTCEPSS rescore
  23. 2026-08-20 22:55 UTCEPSS rescore
  24. 2026-08-19 17:03 UTCEPSS rescore
  25. 2026-08-18 13:48 UTCEPSS rescore
Show 75 more
  1. 2026-08-17 14:45 UTCEG score recompute
  2. 2026-08-17 14:45 UTCVendor advisory
  3. 2026-08-17 14:45 UTCGHSA enrichment
  4. 2026-08-17 13:47 UTCEPSS rescore
  5. 2026-08-16 14:56 UTCEPSS rescore
  6. 2026-08-16 05:43 UTCEG score recompute
  7. 2026-08-16 05:43 UTCVendor advisory
  8. 2026-08-16 05:43 UTCGHSA enrichment
  9. 2026-08-16 02:14 UTCEPSS rescore
  10. 2026-08-15 02:20 UTCEG score recompute
  11. 2026-08-15 02:20 UTCVendor advisory
  12. 2026-08-15 02:20 UTCGHSA enrichment
  13. 2026-08-15 01:30 UTCEPSS rescore
  14. 2026-08-14 15:11 UTCVendor advisory
  15. 2026-08-14 15:11 UTCGHSA enrichment
  16. 2026-08-14 04:04 UTCEG score recompute
  17. 2026-08-14 04:04 UTCVendor advisory
  18. 2026-08-14 04:04 UTCGHSA enrichment
  19. 2026-08-13 22:00 UTCEPSS rescore
  20. 2026-08-13 04:53 UTCVendor advisory
  21. 2026-08-13 04:53 UTCGHSA enrichment
  22. 2026-08-12 17:46 UTCEG score recompute
  23. 2026-08-12 17:46 UTCVendor advisory
  24. 2026-08-12 17:46 UTCGHSA enrichment
  25. 2026-08-12 13:50 UTCEPSS rescore
  26. 2026-08-11 16:40 UTCVendor advisory
  27. 2026-08-11 16:40 UTCGHSA enrichment
  28. 2026-08-11 02:07 UTCEG score recompute
  29. 2026-08-11 02:07 UTCVendor advisory
  30. 2026-08-11 02:06 UTCGHSA enrichment
  31. 2026-08-11 00:00 UTCEPSS rescore
  32. 2026-08-10 12:47 UTCVendor advisory
  33. 2026-08-10 12:47 UTCGHSA enrichment
  34. 2026-08-10 01:30 UTCVendor advisory
  35. 2026-08-10 01:30 UTCGHSA enrichment
  36. 2026-08-09 14:23 UTCEG score recompute
  37. 2026-08-09 14:23 UTCVendor advisory
  38. 2026-08-09 14:23 UTCGHSA enrichment
  39. 2026-08-09 13:46 UTCEPSS rescore
  40. 2026-08-09 03:16 UTCEG score recompute
  41. 2026-08-09 03:16 UTCVendor advisory
  42. 2026-08-09 03:16 UTCGHSA enrichment
  43. 2026-08-08 16:37 UTCEPSS rescore
  44. 2026-08-08 11:11 UTCVendor advisory
  45. 2026-08-08 11:11 UTCGHSA enrichment
  46. 2026-08-07 23:36 UTCEG score recompute
  47. 2026-08-07 23:36 UTCVendor advisory
  48. 2026-08-07 23:36 UTCGHSA enrichment
  49. 2026-08-07 12:30 UTCEG score recompute
  50. 2026-08-07 12:30 UTCVendor advisory
  51. 2026-08-07 12:30 UTCGHSA enrichment
  52. 2026-08-06 13:46 UTCEPSS rescore
  53. 2026-08-06 11:22 UTCVendor advisory
  54. 2026-08-06 11:22 UTCGHSA enrichment
  55. 2026-08-05 23:43 UTCEG score recompute
  56. 2026-08-05 23:43 UTCVendor advisory
  57. 2026-08-05 23:43 UTCGHSA enrichment
  58. 2026-08-05 19:17 UTCEPSS rescore
  59. 2026-08-05 12:37 UTCEG score recompute
  60. 2026-08-05 12:37 UTCVendor advisory
  61. 2026-08-05 12:36 UTCGHSA enrichment
  62. 2026-08-04 15:10 UTCEPSS rescore
  63. 2026-08-04 10:38 UTCEPSS rescore
  64. 2026-08-03 20:59 UTCEG score recompute
  65. 2026-08-03 20:59 UTCVendor advisory
  66. 2026-08-03 20:59 UTCGHSA enrichment
  67. 2026-08-03 10:36 UTCEPSS rescore
  68. 2026-08-02 21:48 UTCVendor advisory
  69. 2026-08-02 21:48 UTCGHSA enrichment
  70. 2026-08-02 10:42 UTCEG score recompute
  71. 2026-08-02 10:42 UTCVendor advisory
  72. 2026-08-02 10:41 UTCGHSA enrichment
  73. 2026-08-02 02:27 UTCEPSS rescore
  74. 2026-08-01 04:16 UTCEPSS rescore
  75. 2026-07-30 16:28 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-31679?
CVE-2026-31679 is a high vulnerability published on April 25, 2026. In the Linux kernel, the following vulnerability has been resolved: openvswitch: validate MPLS set/set_masked payload length validateset() accepted OVSKEYATTRMPLS as variable-sized payload for SET/SET_MASKED actions. In action handling, OVS expects fixed-size MPLS key data (struct ovskeympls). Use…
When was CVE-2026-31679 disclosed?
CVE-2026-31679 was first published in the National Vulnerability Database on April 25, 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-2026-31679 actively exploited?
CVE-2026-31679 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 98.1% of all scored CVEs.
What is the CVSS score of CVE-2026-31679?
CVE-2026-31679 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2026-31679?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-31679, 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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