VULNERABILITY INTELLIGENCE

CVE-2020-3500

CVSS score6.8 MEDIUM
EPSS probability1.62%
CISA KEVNot currently listed
Published2020-08-17
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

Description

A vulnerability in the IPv6 implementation of Cisco StarOS could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient validation of incoming IPv6 traffic. An attacker could exploit this vulnerability by sending a crafted IPv6 packet to an affected device with the goal of reaching the vulnerable section of the input buffer. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. This vulnerability is specific to IPv6 traffic. IPv4 traffic is not affected.

Weakness classification

  • psirt@cisco.com: CWE-119
  • nvd@nist.gov: CWE-119

Primary references