CVE-2022-26522

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-08. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
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

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

The socket connection handler in aswArPot.sys in the Avast and AVG Windows Anti Rootkit driver before 22.1 allows local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) due to a double fetch vulnerability at aswArPot+0xc4a3.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: 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%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
12.2%
KEV
Not listed

Published

May 8, 2026

Last Modified

May 8, 2026

Advisory Details (2)

Auto-updated May 20, 2026
⚠️ Active exploitation confirmed. Patch available.
generic Patch Available🔴 Active Exploitation

Vulnerabilities in Avast And AVG Put Millions At Risk | SentinelOne

https://www.sentinelone.com/labs/vulnerabilities-in-avast-and-avg-put-millions-at-risk/
generic

Report a Potential Security Vulnerability | Contact Us | Gen™ | Gen™

https://www.avast.com/bug-bounty

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 46× 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 152 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2022-26522?
CVE-2022-26522 is a high vulnerability published on May 8, 2026. The socket connection handler in aswArPot.sys in the Avast and AVG Windows Anti Rootkit driver before 22.1 allows local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) due to a double fetch vulnerability at aswArPot+0xc4a3.
When was CVE-2022-26522 disclosed?
CVE-2022-26522 was first published in the National Vulnerability Database on May 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-26522 actively exploited?
CVE-2022-26522 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 12.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-26522?
CVE-2022-26522 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2022-26522?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-26522, 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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