CVE-2021-1614: cisco cisco sd-wan solution Buffer Over-read

Vulnerability summary

CVE-2021-1614 is a medium (CVSS 5.3) Buffer Over-read vulnerability in cisco cisco sd-wan solution. EPSS estimates a 1.19% chance of exploitation in the next 30 days, higher than 67.4% of scored vulnerabilities.

Timeline

1. 22-07-2021
   PublishedVulnerability first disclosed.
2. 07-11-2024
   Last modifiedVulnerability information updated.

Description

A vulnerability in the Multiprotocol Label Switching (MPLS) packet handling function of Cisco SD-WAN Software could allow an unauthenticated, remote attacker to gain access to information stored in MPLS buffer memory. This vulnerability is due to insufficient handling of malformed MPLS packets that are processed by a device that is running Cisco SD-WAN Software. An attacker could exploit this vulnerability by sending a crafted MPLS packet to an affected device that is running Cisco SD-WAN Software or Cisco SD-WAN vManage Software. A successful exploit could allow the attacker to gain unauthorized access to sensitive information.

• CWE-126Buffer Over-readThe product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer.