CVE-2022-26522

Local Kernel‑Mode Code Execution via Double‑Fetch in Avast/AVG Anti‑Rootkit Driver

Published May 8, 2026 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Avast
Avast antivurus
Avast avg Antivirus
Vendors & Products Avast
Avast antivurus
Avast avg Antivirus
Type Values Removed Values Added
Title Local Kernel‑Mode Code Execution via Double‑Fetch in Avast/AVG Anti‑Rootkit Driver
Type Values Removed Values Added
Title Local Kernel‑Mode Code Execution via Double‑Fetch in Avast/AVG Anti‑Rootkit Driver
Weaknesses CWE-416
CWE-84
Type Values Removed Values Added
Weaknesses CWE-367
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Title Local Kernel‑Mode Code Execution via Double‑Fetch in Avast/AVG Anti‑Rootkit Driver
Weaknesses CWE-416
CWE-84
Type Values Removed Values Added
Description 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.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
May 8, 2026, 2:29 PM
Reserved
Mar 7, 2022, 12:00 AM
Status
Awaiting Analysis
Published
May 8, 2026, 5:16 AM
Modified
Nov 10, 2026, 12:10 PM