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
7.8EG
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

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 PROB
0%
EPSS %ILE
8%
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 5× in last 7d / 30× 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 233 total refreshes for this CVE.

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

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 0% probability of exploitation in the next 30 days, which ranks it in the top 92.1% of all scored CVEs.
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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