CVE-2023-54306

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2025-12-30. the CNA's CVSS baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:linux, epss, ghsa
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: None knownExposed: 0

A fix is available — apply it.

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

net: tls: avoid hanging tasks on the tx_lock

syzbot sent a hung task report and Eric explains that adversarial receiver may keep RWIN at 0 for a long time, so we are not guaranteed to make forward progress. Thread which took tx_lock and went to sleep may not release tx_lock for hours. Use interruptible sleep where possible and reschedule the work if it can't take the lock.

Testing: existing selftest passes

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
38(Track)
EG Risk 38/100SSVC: 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
Severity75% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
46%
KEV
Not listed

Published

December 30, 2025

Last Modified

August 5, 2026

Advisory Details (6)

Auto-updated Aug 6, 2026
No patch confirmed yet.
generic

net: tls: avoid hanging tasks on the tx_lock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f3221361dc85d4de22586ce8441ec2c67b454f5d
generic

net: tls: avoid hanging tasks on the tx_lock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ccf1ccdc5926907befbe880b562b2a4b5f44c087
generic

net: tls: avoid hanging tasks on the tx_lock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/1f800f6aae57d2d8f63d32fff383017cbc11cf65
generic

net: tls: avoid hanging tasks on the tx_lock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/be5d5d0637fd88c18ee76024bdb22649a1de00d6
generic

net: tls: avoid hanging tasks on the tx_lock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7123a4337bf73132bbfb5437e4dc83ba864a9a1e
generic

net: tls: avoid hanging tasks on the tx_lock - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bde541a57b4204d0a800afbbd3d1c06c9cdb133f

Vendor Advisories for CVE-2023-54306(2)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatkernel-0:5.14.0-362.8.1.el9_32023-11-07redhat
linuxKernel @ 5.4.235—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 ... 5.10.92-2 (25 versions)5.10.178-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux—6.1.20-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux—6.1.20-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux—6.1.20-1—

Data Freshness Timeline

(refreshed 7× in last 7d / 29× 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 189 total refreshes for this CVE.

  1. 2026-09-18 19:26 UTCEPSS rescore
  2. 2026-09-16 14:06 UTCEPSS rescore
  3. 2026-09-16 05:11 UTCEPSS rescore
  4. 2026-09-16 05:11 UTCEPSS rescore
  5. 2026-09-15 03:08 UTCEPSS rescore
  6. 2026-09-13 16:45 UTCEPSS rescore
  7. 2026-09-12 14:58 UTCEPSS rescore
  8. 2026-09-11 14:51 UTCEPSS rescore
  9. 2026-09-11 09:34 UTCEPSS rescore
  10. 2026-09-08 21:58 UTCEPSS rescore
  11. 2026-09-07 15:59 UTCEPSS rescore
  12. 2026-09-06 13:46 UTCEPSS rescore
  13. 2026-09-05 15:26 UTCEPSS rescore
  14. 2026-09-04 13:58 UTCEPSS rescore
  15. 2026-09-04 05:04 UTCEPSS rescore
  16. 2026-09-02 14:10 UTCEPSS rescore
  17. 2026-09-01 13:52 UTCEPSS rescore
  18. 2026-09-01 04:36 UTCEPSS rescore
  19. 2026-09-01 00:04 UTCOSV refresh
  20. 2026-08-30 19:15 UTCEPSS rescore
  21. 2026-08-30 01:20 UTCEPSS rescore
  22. 2026-08-28 21:39 UTCEPSS rescore
  23. 2026-08-27 14:23 UTCEPSS rescore
  24. 2026-08-26 14:44 UTCEPSS rescore
  25. 2026-08-25 13:47 UTCEPSS rescore
Show 75 more
  1. 2026-08-23 00:17 UTCEPSS rescore
  2. 2026-08-23 00:17 UTCEPSS rescore
  3. 2026-08-21 23:47 UTCEPSS rescore
  4. 2026-08-20 22:53 UTCEPSS rescore
  5. 2026-08-19 17:02 UTCEPSS rescore
  6. 2026-08-18 13:46 UTCEPSS rescore
  7. 2026-08-16 14:54 UTCEPSS rescore
  8. 2026-08-16 02:12 UTCEPSS rescore
  9. 2026-08-15 01:28 UTCEPSS rescore
  10. 2026-08-15 00:47 UTCEG score recompute
  11. 2026-08-15 00:47 UTCGHSA enrichment
  12. 2026-08-13 21:58 UTCEPSS rescore
  13. 2026-08-12 13:49 UTCEPSS rescore
  14. 2026-08-11 13:40 UTCEPSS rescore
  15. 2026-08-10 23:58 UTCEPSS rescore
  16. 2026-08-09 22:19 UTCEG score recompute
  17. 2026-08-09 22:19 UTCGHSA enrichment
  18. 2026-08-09 13:44 UTCEPSS rescore
  19. 2026-08-08 16:35 UTCEPSS rescore
  20. 2026-08-08 04:33 UTCEG score recompute
  21. 2026-08-08 04:33 UTCGHSA enrichment
  22. 2026-08-07 16:25 UTCEPSS rescore
  23. 2026-08-06 13:45 UTCEPSS rescore
  24. 2026-08-06 06:42 UTCEG score recompute
  25. 2026-08-06 06:42 UTCGHSA enrichment
  26. 2026-08-05 19:15 UTCEPSS rescore
  27. 2026-08-05 19:15 UTCEPSS rescore
  28. 2026-08-05 10:11 UTCEG score recompute
  29. 2026-08-05 10:11 UTCGHSA enrichment
  30. 2026-08-04 11:26 UTCEG score recompute
  31. 2026-08-04 11:25 UTCGHSA enrichment
  32. 2026-08-04 10:36 UTCEPSS rescore
  33. 2026-08-04 10:21 UTCEG score recompute▲ 7.50
  34. 2026-08-04 10:20 UTCGHSA enrichment
  35. 2026-08-04 10:19 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  36. 2026-08-03 10:34 UTCEPSS rescore
  37. 2026-08-02 02:25 UTCEPSS rescore
  38. 2026-08-02 02:25 UTCEPSS rescore
  39. 2026-08-01 04:14 UTCEPSS rescore
  40. 2026-07-30 16:26 UTCEPSS rescore
  41. 2026-07-30 01:29 UTCEPSS rescore
  42. 2026-07-28 15:34 UTCEPSS rescore
  43. 2026-07-28 15:34 UTCEPSS rescore
  44. 2026-07-27 03:09 UTCOSV refresh
  45. 2026-07-26 14:53 UTCEPSS rescore
  46. 2026-07-25 14:16 UTCEPSS rescore
  47. 2026-07-24 14:16 UTCEPSS rescore
  48. 2026-07-23 14:16 UTCEPSS rescore
  49. 2026-07-23 02:30 UTCEG score recompute
  50. 2026-07-22 23:16 UTCEG score recompute
  51. 2026-07-22 14:07 UTCEPSS rescore
  52. 2026-07-22 14:07 UTCEPSS rescore
  53. 2026-07-21 15:23 UTCEPSS rescore
  54. 2026-07-20 17:06 UTCEPSS rescore
  55. 2026-07-19 14:30 UTCEPSS rescore
  56. 2026-07-19 14:29 UTCEPSS rescore
  57. 2026-07-19 02:27 UTCEPSS rescore
  58. 2026-07-19 02:27 UTCEPSS rescore
  59. 2026-07-18 10:03 UTCEPSS rescore
  60. 2026-07-18 10:03 UTCEPSS rescore
  61. 2026-07-16 17:01 UTCEPSS rescore
  62. 2026-07-15 16:56 UTCEPSS rescore
  63. 2026-07-15 01:59 UTCEPSS rescore
  64. 2026-07-15 01:59 UTCEPSS rescore
  65. 2026-07-13 22:28 UTCEPSS rescore
  66. 2026-07-13 22:28 UTCEPSS rescore
  67. 2026-07-13 06:11 UTCEPSS rescore
  68. 2026-07-12 05:45 UTCEPSS rescore
  69. 2026-07-12 05:45 UTCEPSS rescore
  70. 2026-07-11 08:26 UTCEPSS rescore
  71. 2026-07-09 21:45 UTCOSV refresh
  72. 2026-07-09 19:08 UTCEPSS rescore
  73. 2026-07-08 15:13 UTCEPSS rescore
  74. 2026-07-07 13:45 UTCEPSS rescore
  75. 2026-07-07 13:44 UTCEPSS rescore

Frequently asked(5)

What is CVE-2023-54306?
CVE-2023-54306 is a high vulnerability published on December 30, 2025. In the Linux kernel, the following vulnerability has been resolved: net: tls: avoid hanging tasks on the tx_lock syzbot sent a hung task report and Eric explains that adversarial receiver may keep RWIN at 0 for a long time, so we are not guaranteed to make forward progress. Thread which took…
When was CVE-2023-54306 disclosed?
CVE-2023-54306 was first published in the National Vulnerability Database on December 30, 2025, 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-2023-54306 actively exploited?
CVE-2023-54306 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 53.6% of all scored CVEs.
What is the CVSS score of CVE-2023-54306?
CVE-2023-54306 has a CVSS v4.0 base score of 7.5 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2023-54306?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-54306, 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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