CVE-2023-53321

HIGHNVD 7.17.1—
EchelonGraph scoreMEDIUM confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2025-09-16. NVD baseline CVSS 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: None knownExposed: 0

A fix is available — apply it.

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

wifi: mac80211_hwsim: drop short frames

While technically some control frames like ACK are shorter and end after Address 1, such frames shouldn't be forwarded through wmediumd or similar userspace, so require the full 3-address header to avoid accessing invalid memory if shorter frames are passed in.

CVSS v3
7.1
EG Score
7.1(medium)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity71% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
4%
KEV
Not listed

Published

September 16, 2025

Last Modified

August 5, 2026

Advisory Details (6)

Auto-updated Aug 5, 2026
No patch confirmed yet.
generic

wifi: mac80211_hwsim: drop short frames - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/fba360a047d5eeeb9d4b7c3a9b1c8308980ce9a6
generic

wifi: mac80211_hwsim: drop short frames - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/89a41ed7f21476301659ebd25ccb48a60791c1a7
generic

wifi: mac80211_hwsim: drop short frames - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b9a175e3b250b0dc6e152988040aa5014e98e61e
generic

wifi: mac80211_hwsim: drop short frames - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c64ee9dd335832d5e2ab0a8fc83a34ad4c729799
generic

wifi: mac80211_hwsim: drop short frames - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/672205c6f2d11978fcd7f0f336bb2c708e28874b
generic

wifi: mac80211_hwsim: drop short frames - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3beb97bed860d95b14ad23578ce8ddaea62023db

Vendor Advisories for CVE-2023-53321(1)

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-0:5.14.0-427.13.1.el9_42024-04-30redhat
linuxKernel @ 5.4.257—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 (34 versions)5.10.197-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
linux6.1.27-1 ... 6.1.55-1~bpo11+1 (10 versions)6.1.55-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux—6.5.6-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux—6.5.6-1—

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 150 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. 2026-09-07 06:47 UTCOSV refresh
  13. 2026-09-06 13:46 UTCEPSS rescore
  14. 2026-09-05 15:26 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. 2026-08-30 19:15 UTCEPSS rescore
  20. 2026-08-30 01:20 UTCEPSS rescore
  21. 2026-08-28 21:39 UTCEPSS rescore
  22. 2026-08-27 14:23 UTCEPSS rescore
  23. 2026-08-26 14:44 UTCEPSS rescore
  24. 2026-08-25 13:47 UTCEPSS rescore
  25. 2026-08-23 00:17 UTCEPSS rescore
Show 75 more
  1. 2026-08-23 00:17 UTCEPSS rescore
  2. 2026-08-21 23:47 UTCEPSS rescore
  3. 2026-08-20 22:53 UTCEPSS rescore
  4. 2026-08-20 16:01 UTCOSV refresh
  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. 2026-08-13 21:58 UTCEPSS rescore
  11. 2026-08-12 13:49 UTCEPSS rescore
  12. 2026-08-11 13:40 UTCEPSS rescore
  13. 2026-08-10 23:58 UTCEPSS rescore
  14. 2026-08-09 13:44 UTCEPSS rescore
  15. 2026-08-08 16:35 UTCEPSS rescore
  16. 2026-08-07 16:25 UTCEPSS rescore
  17. 2026-08-06 13:45 UTCEPSS rescore
  18. 2026-08-05 19:15 UTCEPSS rescore
  19. 2026-08-05 19:15 UTCEPSS rescore
  20. 2026-08-05 10:20 UTCEG score recompute
  21. 2026-08-05 10:20 UTCVendor advisory
  22. 2026-08-05 10:20 UTCGHSA enrichment
  23. 2026-08-04 10:36 UTCEPSS rescore
  24. 2026-08-04 09:32 UTCEG score recompute
  25. 2026-08-04 09:32 UTCVendor advisory
  26. 2026-08-04 09:32 UTCGHSA enrichment
  27. 2026-08-03 10:34 UTCEPSS rescore
  28. 2026-08-02 02:25 UTCEPSS rescore
  29. 2026-08-02 02:25 UTCEPSS rescore
  30. 2026-08-01 04:14 UTCEPSS rescore
  31. 2026-07-30 16:26 UTCEPSS rescore
  32. 2026-07-30 01:29 UTCEPSS rescore
  33. 2026-07-28 15:34 UTCEPSS rescore
  34. 2026-07-28 15:34 UTCEPSS rescore
  35. 2026-07-26 14:53 UTCEPSS rescore
  36. 2026-07-25 14:16 UTCEPSS rescore
  37. 2026-07-24 14:16 UTCEPSS rescore
  38. 2026-07-23 20:11 UTCOSV refresh
  39. 2026-07-23 14:16 UTCEPSS rescore
  40. 2026-07-23 02:29 UTCEG score recompute
  41. 2026-07-22 23:16 UTCEG score recompute
  42. 2026-07-22 14:07 UTCEPSS rescore
  43. 2026-07-22 14:07 UTCEPSS rescore
  44. 2026-07-21 15:23 UTCEPSS rescore
  45. 2026-07-20 17:06 UTCEPSS rescore
  46. 2026-07-19 14:30 UTCEPSS rescore
  47. 2026-07-19 14:29 UTCEPSS rescore
  48. 2026-07-18 10:03 UTCEPSS rescore
  49. 2026-07-18 10:03 UTCEPSS rescore
  50. 2026-07-16 17:01 UTCEPSS rescore
  51. 2026-07-15 16:56 UTCEPSS rescore
  52. 2026-07-15 01:59 UTCEPSS rescore
  53. 2026-07-15 01:59 UTCEPSS rescore
  54. 2026-07-13 22:28 UTCEPSS rescore
  55. 2026-07-13 22:28 UTCEPSS rescore
  56. 2026-07-13 06:11 UTCEPSS rescore
  57. 2026-07-12 05:45 UTCEPSS rescore
  58. 2026-07-12 05:45 UTCEPSS rescore
  59. 2026-07-11 08:26 UTCEPSS rescore
  60. 2026-07-09 19:08 UTCEPSS rescore
  61. 2026-07-08 15:13 UTCEPSS rescore
  62. 2026-07-07 13:45 UTCEPSS rescore
  63. 2026-07-07 13:44 UTCEPSS rescore
  64. 2026-07-06 14:31 UTCOSV refresh
  65. 2026-07-06 02:22 UTCEPSS rescore
  66. 2026-07-06 02:22 UTCEPSS rescore
  67. 2026-07-05 02:29 UTCEPSS rescore
  68. 2026-07-04 06:29 UTCEPSS rescore
  69. 2026-07-01 15:05 UTCEPSS rescore
  70. 2026-06-30 23:21 UTCEPSS rescore
  71. 2026-06-30 23:21 UTCEPSS rescore
  72. 2026-06-29 14:05 UTCEPSS rescore
  73. 2026-06-28 14:06 UTCEPSS rescore
  74. 2026-06-28 14:06 UTCEPSS rescore
  75. 2026-06-28 04:55 UTCEPSS rescore

Frequently asked(5)

What is CVE-2023-53321?
CVE-2023-53321 is a high vulnerability published on September 16, 2025. In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211_hwsim: drop short frames While technically some control frames like ACK are shorter and end after Address 1, such frames shouldn't be forwarded through wmediumd or similar userspace, so require the full 3-address…
When was CVE-2023-53321 disclosed?
CVE-2023-53321 was first published in the National Vulnerability Database on September 16, 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-2023-53321 actively exploited?
CVE-2023-53321 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 95.5% of all scored CVEs.
What is the CVSS score of CVE-2023-53321?
CVE-2023-53321 has a CVSS v3 base score of 7.1 (NVD).
How do I remediate CVE-2023-53321?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-53321, 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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