CVE-2026-53131

CRITICALPre-NVD 9.49.4—
EchelonGraph scoreMEDIUM confidence

Score 9.4 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-25. the CNA's CVSS baseline 9.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
Trending — Patch released this week
9.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.4Exploit: None knownExposed: 0

A fix is available — apply it.

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

netfilter: require Ethernet MAC header before using eth_hdr()

ip6t_eui64, xt_mac, the bitmap:ip,mac, hash:ip,mac, and hash:mac ipset types, and nf_log_syslog access eth_hdr(skb) after either assuming that the skb is associated with an Ethernet device or checking only that the ETH_HLEN bytes at skb_mac_header(skb) lie between skb->head and skb->data.

Make these paths first verify that the skb is associated with an Ethernet device, that the MAC header was set, and that it spans at least a full Ethernet header before accessing eth_hdr(skb).

CVSS v3
9.4
EG Score
9.4(medium)
EG Risk
47(Track)
EG Risk 47/100SSVC: 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
Severity94% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
35%
KEV
Not listed

Published

June 25, 2026

Last Modified

August 5, 2026

Advisory Details (7)

Auto-updated Aug 29, 2026
No patch confirmed yet.
generic

netfilter: require Ethernet MAC header before using eth_hdr() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/62443dc21114c0bbc476fa62973db89743f2f137
generic

netfilter: require Ethernet MAC header before using eth_hdr() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cea435ea7e868ea6fdf039bc4f2090c1d829b556
generic

netfilter: require Ethernet MAC header before using eth_hdr() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5d634afb8b83b49de562792fd0d047416a43bd4d
generic

netfilter: require Ethernet MAC header before using eth_hdr() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/367abcacc13a8e2e7624408b7f593bd1e60e49d9
generic

netfilter: require Ethernet MAC header before using eth_hdr() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/726abf97566867f808fec9d8a408eb9698bd570a
generic

netfilter: require Ethernet MAC header before using eth_hdr() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/063f43361e884acd7300790e90194430275d0d0c
generic

netfilter: require Ethernet MAC header before using eth_hdr() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4435888e1bf139d2bfe5911643d4217382136743

Vendor Advisories for CVE-2026-53131(3)

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

Patch Availability(11)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-6.17 (6.17.0-42.42) @ noble2026-08-28ubuntu
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-29.29) @ resolute2026-08-28ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1010.10) @ resolute2026-08-28ubuntu
ubuntulinux-tools-aws-edge (7.0.0-1010.10~24.04.1) @ noble2026-08-28ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-29.29~24.04.2) @ noble2026-08-28ubuntu
ubuntulinux-tools-oracle-64k-6.17 (6.17.0-1020.20) @ noble2026-08-28ubuntu
ubuntulinux-tools-gke-hwe-26.04 (7.0.0-1005.6) @ resolute2026-08-28ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1016.16) @ resolute2026-08-28ubuntu
ubuntulinux-tools-nvidia-hwe-26.04 (7.0.0-2016.16) @ resolute2026-08-28ubuntu
ubuntulinux-tools-nvidia-hwe-24.04 (6.17.0-1031.31) @ noble2026-08-28ubuntu
redhatkernel-0:5.14.0-687.42.1.el9_82026-08-26redhat

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 ... 7.2~rc5-1~exp1 (496 versions)——
linux-6.16.1.106-3~deb11u1 ... 6.1.174-1~deb11u1 (20 versions)6.1.176-1~deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.106-1 ... 6.1.99-1 (53 versions)6.1.176-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.94-1~bpo12+1 (27 versions)6.12.94-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (142 versions)7.0.13-1—

Additional Vendor Advisories

(10)

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 28× in last 7d / 226× 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 407 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-53131?
CVE-2026-53131 is a critical vulnerability published on June 25, 2026. In the Linux kernel, the following vulnerability has been resolved: netfilter: require Ethernet MAC header before using eth_hdr() ip6teui64, xtmac, the bitmap:ip,mac, hash:ip,mac, and hash:mac ipset types, and nflogsyslog access eth_hdr(skb) after either assuming that the skb is associated with an…
When was CVE-2026-53131 disclosed?
CVE-2026-53131 was first published in the National Vulnerability Database on June 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-2026-53131 actively exploited?
CVE-2026-53131 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 64.7% of all scored CVEs.
What is the CVSS score of CVE-2026-53131?
CVE-2026-53131 has a CVSS v4.0 base score of 9.4 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-53131?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53131, 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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