CVE-2009-2966
CWE-399Published: August 25, 2009· Updated: Jun 16, 2026
Official Description
avp.exe in Kaspersky Internet Security 9.0.0.459 and Anti-Virus 9.0.0.463 allows remote attackers to cause a denial of service (CPU consumption and network connectivity loss) via an HTTP URL request that contains a large number of dot "." characters.
Technical Analysis
CVE-2009-2966 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A proof-of-concept (PoC) exploit exists for CVE-2009-2966. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (18)
Quick Facts
Related CVEs (CWE-399)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2009-2966 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts