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
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 9.1Exploit: None knownExposed services: Not assessed

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
9.1CRITICALmedium confidence
EG Risk
46
EG Risk 46/100

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%
EPSS PROB
0.5%
EPSS %ILE
37th
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 / EcosystemFix (by version range) / 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 (fixes >=6.2.0)—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 rangeFix by version rangeDependents
linux6.12.38-1 ... 6.12.94-1~bpo12+1 (27 versions)
  • every version up to 6.12.94-1: fixed in 6.12.94-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.0.9-1~bpo13+1 (142 versions)
  • every version up to 7.0.12-1: fixed in 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 5× in last 7d / 26× 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 533 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

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 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 0.5% probability of exploitation in the next 30 days (37th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-46244?
CVE-2026-46244 has a CVSS base score of 9.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-46244?
A fix for CVE-2026-46244 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-46244 are linked in the Vendor Advisories panel on this page.

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