CVE-2009-3522

Severity: high (CVSS 7.2 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2009-10-01 · updated 2026-06-16
Weakness: CWE-119

Description

Stack-based buffer overflow in aswMon2.sys in avast! Home and Professional for Windows 4.8.1351, and possibly other versions before 4.8.1356, allows local users to cause a denial of service (system crash) and possibly gain privileges via a crafted IOCTL request to IOCTL 0xb2c80018.

Affected products

Avast Antivirus Home: 4.8.1351
Avast Antivirus Professional: 4.8.1351

References

http://osvdb.org/58402
http://secunia.com/advisories/36858
http://www.avast.com/eng/avast-4-home_pro-revision-history.html
http://www.securityfocus.com/archive/1/506681/100/0/threaded
http://www.securityfocus.com/bid/36507
http://www.securitytracker.com/id?1022940
http://www.vupen.com/english/advisories/2009/2761
https://exchange.xforce.ibmcloud.com/vulnerabilities/53456
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6226
https://www.evilfingers.com/advisory/Advisory/Avast_aswMon2.sys_kernel_memory_corruption_and_Local_Privilege_Escalation.php
http://osvdb.org/58402
http://secunia.com/advisories/36858

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