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 — 4 sources updated this week
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 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)
EPSS
2.2%
KEV
Not listed

Published

June 3, 2026

Last Modified

June 9, 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(8)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-tools-fips-6.8 (6.8.0-134.134+fips1) @ noble2026-07-12ubuntu
ubuntulinux-tools-raspi-6.8 (6.8.0-1060.64) @ noble2026-07-12ubuntu
ubuntulinux-virtual-6.8 (6.8.0-134.134) @ noble2026-07-12ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2049.50) @ noble2026-07-12ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1032.33) @ noble2026-07-12ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1058.61.1) @ noble2026-07-12ubuntu
ubuntulinux-tools-nvidia-tegra-rt-6.8 (6.8.0-1029.30) @ noble2026-07-12ubuntu
ubuntulinux-tools-lowlatency-hwe-20.04-edge (6.8.0-134.134.1) @ noble2026-07-12ubuntu

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.

Weakness Classification(1)

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

All Vendor Advisories

(8)

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 18× in last 7d / 102× 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 140 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

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 June 9, 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 2.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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

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