CVE-2026-46267

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-03. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 5 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

nfc: hci: shdlc: Stop timers and work before freeing context

llc_shdlc_deinit() purges SHDLC skb queues and frees the llc_shdlc structure while its timers and state machine work may still be active.

Timer callbacks can schedule sm_work, and sm_work accesses SHDLC state and the skb queues. If teardown happens in parallel with a queued/running work item, it can lead to UAF and other shutdown races.

Stop all SHDLC timers and cancel sm_work synchronously before purging the queues and freeing the context.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

June 3, 2026

Last Modified

July 22, 2026

Advisory Details (7)

Auto-updated Jun 9, 2026
No patch confirmed yet.
generic

nfc: hci: shdlc: Stop timers and work before freeing context - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/cf70cedce327833296ebe6043364d1e44b76a2ab
generic

nfc: hci: shdlc: Stop timers and work before freeing context - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c9efde1e537baed7648a94022b43836a348a074f
generic

nfc: hci: shdlc: Stop timers and work before freeing context - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c60f41022eaad2a1dafecd3ae6f249a3bd6d4b6e
generic

nfc: hci: shdlc: Stop timers and work before freeing context - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a24a676329d40481b2331bfa1418a679577dfd3a
generic

nfc: hci: shdlc: Stop timers and work before freeing context - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/77eef9f2eef045c3c37a3df82d3e661afb866b98
generic

nfc: hci: shdlc: Stop timers and work before freeing context - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/276820278e9717cc7d4bb32381892dd3ddf418d4
generic

nfc: hci: shdlc: Stop timers and work before freeing context - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1cb97b1225450af3f7b728777929ba50c6a58ced

Vendor Advisories for CVE-2026-46267(1)

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

Patch Availability(24)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-6.8 (6.8.0-134.134) @ noble2026-09-14ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1058.61.1) @ noble2026-09-14ubuntu
ubuntulinux-tools-nvidia-tegra-rt-6.8 (6.8.0-1029.30) @ noble2026-09-14ubuntu
ubuntulinux-tools-lowlatency-hwe-20.04-edge (6.8.0-134.134.1) @ noble2026-09-14ubuntu
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-20.04-edge (5.15.0.186.196~20.04.1) @ focal2026-09-14ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.66~20.04.1) @ focal2026-09-14ubuntu
ubuntulinux-tools-nvidia-lowlatency-5.15 (5.15.0.1107.107) @ jammy2026-09-14ubuntu
ubuntulinux-tools-nvidia-tegra-rt-5.15 (5.15.0.1064.64) @ jammy2026-09-14ubuntu
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-tools-oracle-lts-22.04 (5.15.0.1109.105) @ jammy2026-09-14ubuntu
ubuntulinux-tools-azure-fde-lts-22.04 (5.15.0.1117.126) @ jammy2026-09-14ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-136.136~22.04.1) @ jammy2026-09-14ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1109.115~20.04.1) @ focal2026-09-14ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1117.102) @ jammy2026-09-14ubuntu
ubuntulinux-tools-intel-iot-realtime-5.15 (5.15.0.1104.108) @ jammy2026-09-14ubuntu
ubuntulinux-tools-intel-iotg-5.15 (5.15.0.1107.106) @ jammy2026-09-14ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1112.122~20.04.1) @ focal2026-09-14ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2049.50) @ noble2026-09-14ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1032.33) @ noble2026-09-14ubuntu
linuxKernel @ 5.15.202—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 ... 7.2~rc5-1~exp1 (496 versions)——
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 ... 6.18~rc7-1~exp1 (103 versions)6.18.14-1—

Weakness Classification(1)

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

All Vendor Advisories

(23)

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 10× in last 7d / 46× 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 267 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-46267?
CVE-2026-46267 is a high vulnerability published on June 3, 2026. In the Linux kernel, the following vulnerability has been resolved: nfc: hci: shdlc: Stop timers and work before freeing context llcshdlcdeinit() purges SHDLC skb queues and frees the llc_shdlc structure while its timers and state machine work may still be active. Timer callbacks can schedule…
When was CVE-2026-46267 disclosed?
CVE-2026-46267 was first published in the National Vulnerability Database on June 3, 2026, with the most recent update on July 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46267 actively exploited?
CVE-2026-46267 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 97.8% of all scored CVEs.
What is the CVSS score of CVE-2026-46267?
CVE-2026-46267 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-46267?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-46267, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-46267

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