CVE-2026-46244

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-06-03. a secondary CVSS source baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this week
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.1Exploit: None knownExposed: 0

A fix is available — apply it.

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

netfilter: nft_inner: Fix IPv6 inner_thoff desync

In nft_inner_parse_l2l3(), when processing inner IPv6 packets, ipv6_find_hdr() correctly computes the transport header offset traversing all extension headers, but the result is immediately overwritten with nhoff + sizeof(_ip6h) (40 bytes), which only accounts for the IPv6 base header. This creates a desync between inner_thoff (wrong — points to extension header start) and l4proto (correct — e.g., IPPROTO_TCP), enabling transport header forgery and potential firewall bypass. This issue affects stable versions from Linux 6.2.

For comparison, the normal (non-inner) IPv6 path correctly preserves ipv6_find_hdr()'s result. Removing the incorrect overwrite ensures that ipv6_find_hdr()'s calculated transport header offset is preserved, thereby fixing the desynchronization.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
46(Track)
EG Risk 46/100SSVC: 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
Severity91% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
25%
KEV
Not listed

Published

June 3, 2026

Last Modified

August 19, 2026

Advisory Details (10)

Auto-updated Sep 15, 2026
Patch available. Sources: redhat.
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2026:36018
redhat Patch Available

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2026:34911
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions.

https://access.redhat.com/errata/RHSA-2026:34443
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.6 Extended Update Support.

https://access.redhat.com/errata/RHSA-2026:34094
redhat Patch Available

Affected: Red Hat Enterprise Linux 10.0 Extended Update Support.

https://access.redhat.com/errata/RHSA-2026:33215
generic

netfilter: nft_inner: Fix IPv6 inner_thoff desync - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/d0f98a3617f6ae5b1e95cde1e68e7ead4a1279ce
generic

netfilter: nft_inner: Fix IPv6 inner_thoff desync - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c161ad9157f5a0429b5ff94d9770faf3bf48d273
generic

netfilter: nft_inner: Fix IPv6 inner_thoff desync - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b6a91f68ebfed9c38e0e9150f58a9b85da07181c
generic

netfilter: nft_inner: Fix IPv6 inner_thoff desync - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/870d59e2cf218e7418491e26bad768cb16654582
generic

netfilter: nft_inner: Fix IPv6 inner_thoff desync - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/689bbf48c1f45130086ae1c46ab83ea4c753c601

Vendor Advisories for CVE-2026-46244(10)

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

Patch Availability(29)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2049.50) @ noble2026-09-14ubuntu
ubuntulinux-tools-realtime-hwe-24.04-edge (6.17.0-1017.19) @ questing2026-09-14ubuntu
ubuntulinux-tools-raspi-6.8 (6.8.0-1060.64) @ noble2026-09-14ubuntu
ubuntulinux-tools-fips-6.8 (6.8.0-134.134+fips1) @ noble2026-09-14ubuntu
ubuntulinux-virtual-hwe-24.04 (6.17.0-40.40~24.04.1) @ noble2026-09-14ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-09-14ubuntu
ubuntulinux-tools-azure-6.17 (6.17.0-1021.21~24.04.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fde-6.17 (6.17.0-1018.18~24.04.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1063.71) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fde-lts-24.04 (6.8.0-1062.69) @ noble2026-09-14ubuntu
ubuntulinux-tools-azure-fde-6.8 (6.8.0-1062.69~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-tools-gcp-edge (7.0.0-1011.11~24.04.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-nvidia-hwe-24.04-edge (7.0.0-1013.13) @ resolute2026-09-14ubuntu
ubuntulinux-tools-lowlatency-hwe-20.04-edge (6.8.0-134.134.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1058.61.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1008.8) @ resolute2026-09-14ubuntu
ubuntulinux-tools-raspi-6.17 (6.17.0-1021.21) @ questing2026-09-14ubuntu
ubuntulinux-virtual-6.8 (6.8.0-134.134) @ noble2026-09-14ubuntu
ubuntulinux-tools-oem-6.17 (6.17.0-1028.28) @ noble2026-09-14ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.17.0-40.40) @ questing2026-09-14ubuntu
redhatkpatch-patch2026-08-18redhat
redhatkernel-0:5.14.0-687.22.1.el9_82026-07-06redhat
redhatkernel-0:6.12.0-211.30.1.el10_22026-07-02redhat
redhatkernel-0:5.14.0-570.125.1.el9_62026-07-01redhat
redhatkernel-0:5.14.0-427.135.1.el9_42026-07-01redhat
redhatkernel-0:6.12.0-55.84.1.el10_02026-06-29redhat
linuxKernel @ 6.6.142—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 ... 6.12.94-1~bpo12+1 (27 versions)6.12.94-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (141 versions)7.0.12-1—

Weakness Classification(1)

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

Additional Vendor Advisories

(16)

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 10× in last 7d / 57× 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 523 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. 2026-09-14 05:36 UTCEG score recompute
  6. 2026-09-14 05:36 UTCVendor advisory
  7. 2026-09-14 05:36 UTCGHSA enrichment
  8. 2026-09-13 16:47 UTCEPSS rescore
  9. 2026-09-12 23:36 UTCOSV refresh
  10. 2026-09-12 15:01 UTCEPSS rescore
  11. 2026-09-11 14:53 UTCEPSS rescore
  12. 2026-09-11 09:37 UTCEPSS rescore
  13. 2026-09-10 09:34 UTCEPSS rescore
  14. 2026-09-08 22:00 UTCEPSS rescore
  15. 2026-09-07 16:01 UTCEPSS rescore
  16. 2026-09-06 13:47 UTCEPSS rescore
  17. 2026-09-04 05:06 UTCEPSS rescore
  18. 2026-09-02 14:12 UTCEPSS rescore
  19. 2026-09-01 13:54 UTCEPSS rescore
  20. 2026-08-30 19:17 UTCEPSS rescore
  21. 2026-08-30 01:22 UTCEPSS rescore
  22. 2026-08-28 21:41 UTCEPSS rescore
  23. 2026-08-27 14:25 UTCEPSS rescore
  24. 2026-08-26 14:46 UTCEPSS rescore
  25. 2026-08-25 13:49 UTCEPSS rescore
Show 75 more
  1. 2026-08-25 03:39 UTCEG score recompute
  2. 2026-08-25 03:39 UTCVendor advisory
  3. 2026-08-25 03:39 UTCGHSA enrichment
  4. 2026-08-23 21:35 UTCVendor advisory
  5. 2026-08-23 21:34 UTCGHSA enrichment
  6. 2026-08-23 17:12 UTCVendor advisory
  7. 2026-08-23 17:12 UTCGHSA enrichment
  8. 2026-08-23 12:50 UTCEG score recompute
  9. 2026-08-23 12:50 UTCVendor advisory
  10. 2026-08-23 12:50 UTCGHSA enrichment
  11. 2026-08-23 00:19 UTCEPSS rescore
  12. 2026-08-22 00:36 UTCEG score recompute
  13. 2026-08-22 00:36 UTCVendor advisory
  14. 2026-08-22 00:36 UTCGHSA enrichment
  15. 2026-08-21 23:49 UTCEPSS rescore
  16. 2026-08-21 20:13 UTCVendor advisory
  17. 2026-08-21 20:13 UTCGHSA enrichment
  18. 2026-08-21 14:42 UTCVendor advisory
  19. 2026-08-21 14:42 UTCGHSA enrichment
  20. 2026-08-21 07:32 UTCVendor advisory
  21. 2026-08-21 07:32 UTCGHSA enrichment
  22. 2026-08-21 02:23 UTCEG score recompute
  23. 2026-08-21 02:23 UTCVendor advisory
  24. 2026-08-21 02:23 UTCGHSA enrichment
  25. 2026-08-20 22:55 UTCEPSS rescore
  26. 2026-08-20 21:53 UTCVendor advisory
  27. 2026-08-20 21:52 UTCGHSA enrichment
  28. 2026-08-20 17:30 UTCVendor advisory
  29. 2026-08-20 17:29 UTCGHSA enrichment
  30. 2026-08-20 10:04 UTCEG score recompute
  31. 2026-08-20 10:04 UTCVendor advisory
  32. 2026-08-20 10:03 UTCGHSA enrichment
  33. 2026-08-19 17:04 UTCEPSS rescore
  34. 2026-08-19 12:27 UTCEG score recompute
  35. 2026-08-19 12:27 UTCVendor advisory
  36. 2026-08-19 12:26 UTCGHSA enrichment
  37. 2026-08-19 12:10 UTCEG score recompute
  38. 2026-08-19 12:10 UTCVendor advisory
  39. 2026-08-19 12:10 UTCGHSA enrichment
  40. 2026-08-18 13:48 UTCEPSS rescore
  41. 2026-08-18 12:39 UTCEG score recompute
  42. 2026-08-18 12:39 UTCVendor advisory
  43. 2026-08-18 12:38 UTCGHSA enrichment
  44. 2026-08-18 12:16 UTCEG score recompute
  45. 2026-08-18 12:16 UTCVendor advisory
  46. 2026-08-18 12:16 UTCGHSA enrichment
  47. 2026-08-17 13:47 UTCEPSS rescore
  48. 2026-08-17 12:39 UTCVendor advisory
  49. 2026-08-17 12:39 UTCGHSA enrichment
  50. 2026-08-17 08:15 UTCVendor advisory
  51. 2026-08-17 08:15 UTCGHSA enrichment
  52. 2026-08-17 03:49 UTCVendor advisory
  53. 2026-08-17 03:49 UTCGHSA enrichment
  54. 2026-08-16 15:24 UTCEG score recompute
  55. 2026-08-16 15:24 UTCVendor advisory
  56. 2026-08-16 15:24 UTCGHSA enrichment
  57. 2026-08-16 14:56 UTCEPSS rescore
  58. 2026-08-16 11:01 UTCVendor advisory
  59. 2026-08-16 11:01 UTCGHSA enrichment
  60. 2026-08-16 06:39 UTCVendor advisory
  61. 2026-08-16 06:39 UTCGHSA enrichment
  62. 2026-08-16 02:17 UTCEG score recompute
  63. 2026-08-16 02:17 UTCVendor advisory
  64. 2026-08-16 02:17 UTCGHSA enrichment
  65. 2026-08-16 02:14 UTCEPSS rescore
  66. 2026-08-15 19:15 UTCVendor advisory
  67. 2026-08-15 19:15 UTCGHSA enrichment
  68. 2026-08-15 14:47 UTCEG score recompute
  69. 2026-08-15 14:47 UTCVendor advisory
  70. 2026-08-15 14:47 UTCGHSA enrichment
  71. 2026-08-15 01:30 UTCEPSS rescore
  72. 2026-08-15 01:27 UTCVendor advisory
  73. 2026-08-15 01:27 UTCGHSA enrichment
  74. 2026-08-14 21:05 UTCVendor advisory
  75. 2026-08-14 21:05 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-46244?
CVE-2026-46244 is a critical vulnerability published on June 3, 2026. In the Linux kernel, the following vulnerability has been resolved: netfilter: nftinner: Fix IPv6 innerthoff desync In nftinnerparse_l2l3(), when processing inner IPv6 packets, ipv6findhdr() correctly computes the transport header offset traversing all extension headers, but the result is…
When was CVE-2026-46244 disclosed?
CVE-2026-46244 was first published in the National Vulnerability Database on June 3, 2026, with the most recent update on August 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46244 actively exploited?
CVE-2026-46244 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 74.6% of all scored CVEs.
What is the CVSS score of CVE-2026-46244?
CVE-2026-46244 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-46244?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46244, 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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