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Kaspersky RegExp Remote Denial of Service Vulnerability

Disclosed March 18, 2014    Zeroday : 575 days

Vulnerability Description:

Kaspersky Internet Security is vulnerable to a denial of service condition. If a web page is viewed that contains a maliciously formed regular expression, Kaspersky Internet Security will exhaust its CPU resources, rendering the software unusable, so it cannot be shut down or restarted.



Vulnerable Software/Devices:

Kaspersky Internet Security and possibly other versions

Vulnerability Severity:


Exploit Availability:

Publicly Available

Exploit Impact:

Denial of Service
Exploitation of this vulnerability will render the service on the affected system unresponsive. This is a permanent denial of service, so the service will be unresponsive until restarted.

BeyondTrust Prevention and Detection:

BeyondTrust's Retina® Network Security Scanner scans devices to detect for this vulnerability.

  • 33337 - Kaspersky Internet Security Denial of Service (20140320) (Zero-Day)
  • 33338 - Kaspersky Internet Security Denial of Service (20140320) (Zero-Day) - x64


No mitigation is available.