CVE-2009-3523
6.9 · MEDIUMOverview
CVE-2009-3523 is a medium-severity vulnerability affecting avast avast_antivirus_home. It was published on October 1, 2009 and has a CVSS 2.0 base score of 6.9 (MEDIUM).
This vulnerability has a CVSS 2.0 base score of 6.9, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
aavmKer4.sys in avast! Home and Professional for Windows before 4.8.1356 does not properly validate input to IOCTLs (1) 0xb2d6000c and (2) 0xb2d60034, which allows local users to gain privileges via IOCTL requests using crafted kernel addresses that trigger memory corruption, a different vulnerability than CVE-2008-1625.
Remediation
Check the references section for vendor advisories and patches from avast. Update avast_antivirus_home to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| avast | avast_antivirus_home | 0 | Affected |
| avast | avast_antivirus_professional | 0 | Affected |
References
Frequently Asked Questions
What is CVE-2009-3523?
CVE-2009-3523 is a medium-severity vulnerability affecting avast avast_antivirus_home. It was published on October 1, 2009 and has a CVSS 2.0 base score of 6.9 (MEDIUM).
How severe is CVE-2009-3523?
This vulnerability has a CVSS 2.0 base score of 6.9, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2009-3523?
Check the references section for vendor advisories and patches from avast. Update avast_antivirus_home to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2009-3523?
CyberStrike's AI-powered security agents can automatically detect CVE-2009-3523 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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