CVE-2022-49934

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2025-06-18. 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
7.8EG
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:

wifi: mac80211: Fix UAF in ieee80211_scan_rx()

ieee80211_scan_rx() tries to access scan_req->flags after a null check, but a UAF is observed when the scan is completed and __ieee80211_scan_completed() executes, which then calls cfg80211_scan_done() leading to the freeing of scan_req.

Since scan_req is rcu_dereference()'d, prevent the racing in __ieee80211_scan_completed() by ensuring that from mac80211's POV it is no longer accessed from an RCU read critical section before we call cfg80211_scan_done().

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
13%
KEV
Not listed

Published

June 18, 2025

Last Modified

August 5, 2026

Advisory Details (8)

Auto-updated Aug 4, 2026
No patch confirmed yet.
generic

wifi: mac80211: Fix UAF in ieee80211_scan_rx() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e0ff39448cea654843744c72c6780293c5082cb1
generic

wifi: mac80211: Fix UAF in ieee80211_scan_rx() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/c0445feb80a4d0854898118fa01073701f8d356b
generic

wifi: mac80211: Fix UAF in ieee80211_scan_rx() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9ad48cbf8b07f10c1e4a7a262b32a9179ae9dd2d
generic

wifi: mac80211: Fix UAF in ieee80211_scan_rx() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/78a07732fbb0934d14827d8f09b9aa6a49ee1aa9
generic

wifi: mac80211: Fix UAF in ieee80211_scan_rx() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6eb181a64fdabf10be9e54de728876667da20255
generic

wifi: mac80211: Fix UAF in ieee80211_scan_rx() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/60deb9f10eec5c6a20252ed36238b55d8b614a2c
generic

wifi: mac80211: Fix UAF in ieee80211_scan_rx() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5d20c6f932f2758078d0454729129c894fe353e7
generic

wifi: mac80211: Fix UAF in ieee80211_scan_rx() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/4abc8c07a065ecf771827bde3c63fbbe4aa0c08b

Vendor Advisories for CVE-2022-49934(2)

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

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatkernel-0:4.18.0-477.10.1.el8_82023-05-16redhat
redhatkernel-0:5.14.0-284.11.1.el9_22023-05-09redhat
linuxKernel @ 4.9.330—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.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 16× in last 7d / 54× 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 123 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2022-49934?
CVE-2022-49934 is a high vulnerability published on June 18, 2025. In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: Fix UAF in ieee80211scanrx() ieee80211scanrx() tries to access scan_req->flags after a null check, but a UAF is observed when the scan is completed and ieee80211scancompleted() executes, which then calls…
When was CVE-2022-49934 disclosed?
CVE-2022-49934 was first published in the National Vulnerability Database on June 18, 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-2022-49934 actively exploited?
CVE-2022-49934 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 87.1% of all scored CVEs.
What is the CVSS score of CVE-2022-49934?
CVE-2022-49934 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2022-49934?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-49934, 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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