Kaspersky has fixed a security issue in Kaspersky Anti-Virus SDK for Windows, Kaspersky Security for Virtualization Light Agent, Kaspersky Endpoint Security for Windows, Kaspersky Small Office Security, Kaspersky for Windows (Standard, Plus, Premium), Kaspersky Free, Kaspersky Anti-Virus, Kaspersky Internet Security, Kaspersky Security Cloud, Kaspersky Safe Kids, Kaspersky Anti-Ransomware Tool that could allow an authenticated attacker to write data to a limited area outside the allocated kernel memory buffer. The fix was installed automatically for all Kaspersky Endpoint products.

Stack-based buffer overflow in kl1.sys in Kaspersky Anti-Virus 6.0 and 7.0 and Internet Security 6.0 and 7.0 allows local users to gain privileges via an IOCTL 0x800520e8 call.

Kaspersky Anti-Virus 5.0 (5.0.712); Antivirus Personal 5.0.x; Anti-Virus 6.0 (6.0.3.837), 7 (7.0.1.325), 2009 (8.0.0.x), and 2010 (9.0.0.463); and Internet Security 7 (7.0.1.325), 2009 (8.0.0.x), and 2010 (9.0.0.463); use weak permissions (Everyone:Full Control) for the BASES directory, which allows local users to gain SYSTEM privileges by replacing an executable or DLL with a Trojan horse.

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.

Unspecified vulnerability in Kaspersky Anti-Virus 2010 and Kaspersky Internet Security 2010 before Critical Fix 9.0.0.463 allows remote attackers to disable the Kaspersky application via unknown attack vectors unrelated to "an external script."

Kaspersky Secure Connection, Kaspersky Internet Security, Kaspersky Total Security, Kaspersky Security Cloud prior to version 2020 patch E have bug that allows a local user to execute arbitrary code via execution compromised file placed by an attacker with administrator rights. No privilege escalation. Possible whitelisting bypass some of the security products