CVE-2022-26523

MEDIUMRansomware

Avast Anti Rootkit kernel driver user controlled length

Title source: VulnCheck
STIX 2.1 vulnerability

Record summary

CVE-2022-26523 has a selected CVSS score of 5.3 (medium). VulnCheck reports CVE-2022-26523 use in known ransomware campaigns.

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+0xbb94.

Description source: CVE List

Exploitation context

Known exploitation

VulnCheck KEV
Listed · Dec 5, 2022 · VulnCheck
Reported exploitation
Observed · VulnCheck
Ransomware use
Observed · VulnCheck

CISA SSVC decision

ExploitationNone
AutomatableNo
Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated May 8, 2026 · Source: CVE List

Affected products and versions

1
ProductSourceVersion range

Avast

Browse Anti Rootkit / Avast
VulnCheckVersion data not supplied

References

3