CVE-2022-50266

MEDIUMNVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2025-09-15. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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

kprobes: Fix check for probe enabled in kill_kprobe()

In kill_kprobe(), the check whether disarm_kprobe_ftrace() needs to be called always fails. This is because before that we set the KPROBE_FLAG_GONE flag for kprobe so that "!kprobe_disabled(p)" is always false.

The disarm_kprobe_ftrace() call introduced by commit:

0cb2f1372baa ("kprobes: Fix NULL pointer dereference at kprobe_ftrace_handler")

to fix the NULL pointer reference problem. When the probe is enabled, if we do not disarm it, this problem still exists.

Fix it by putting the probe enabled check before setting the KPROBE_FLAG_GONE flag.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
4%
KEV
Not listed

Published

September 15, 2025

Last Modified

December 2, 2025

References (3)

Vendor Advisories for CVE-2022-50266(1)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
linuxKernel @ 6.0.16—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 13× in last 7d / 44× 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.

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

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2022-50266?
CVE-2022-50266 is a medium vulnerability published on September 15, 2025. In the Linux kernel, the following vulnerability has been resolved: kprobes: Fix check for probe enabled in kill_kprobe() In killkprobe(), the check whether disarmkprobe_ftrace() needs to be called always fails. This is because before that we set the KPROBEFLAGGONE flag for kprobe so that…
When was CVE-2022-50266 disclosed?
CVE-2022-50266 was first published in the National Vulnerability Database on September 15, 2025, with the most recent update on December 2, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-50266 actively exploited?
CVE-2022-50266 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 95.9% of all scored CVEs.
What is the CVSS score of CVE-2022-50266?
CVE-2022-50266 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2022-50266?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-50266, 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.

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