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Vulnerability record · CVE-2009-2966 · published 25 August 2009

CVE-2009-2966: Kaspersky anti-virus vulnerability

Kaspersky · Kaspersky Anti Virus

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.

4.3 CVSS 2.0 Medium EPSS 6.4% · top 6.6% CWE-399 · CWE-399
4.3CVSS 2.0 base score
6.4%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
18References, 6 tagged exploit
16 Jun 2026Last modified by NVD

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.

AV:N/AC:M/Au:N/C:N/I:N/A:P

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://archives.neohapsis.com/archives/fulldisclosure/2009-08/0252.html Exploit
http://secunia.com/advisories/36405 Vendor Advisory
http://securityreason.com/achievement_securityalert/66 Exploit
http://www.h-online.com/security/Kaspersky-confirm-and-close-DoS-vulnerability--/news/114077
http://www.osvdb.org/57173
http://www.securityfocus.com/bid/36084 Exploit
http://www.securitytracker.com/id?1022754
http://www.securitytracker.com/id?1022755
https://exchange.xforce.ibmcloud.com/vulnerabilities/52571
http://archives.neohapsis.com/archives/fulldisclosure/2009-08/0252.html Exploit
http://secunia.com/advisories/36405 Vendor Advisory
http://securityreason.com/achievement_securityalert/66 Exploit
http://www.h-online.com/security/Kaspersky-confirm-and-close-DoS-vulnerability--/news/114077
http://www.osvdb.org/57173
http://www.securityfocus.com/bid/36084 Exploit
http://www.securitytracker.com/id?1022754
http://www.securitytracker.com/id?1022755
https://exchange.xforce.ibmcloud.com/vulnerabilities/52571

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2009-2966), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.