CVE-2021-1614 Cisco SD-WAN Software Information Disclosure Vulnerability

Medium 5.3 Published 22 Jul 2021 Updated 7 Nov 2024

Unauthenticated remote attackers can read sensitive MPLS buffer memory by sending crafted packets to Cisco SD-WAN devices.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-1614?

CVE-2021-1614 is a medium-severity vulnerability in Cisco SD-WAN Solution, published on 22 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-126

Which versions are affected by CVE-2021-1614?

It affects 1 product.

Products include Cisco Sd-Wan.

How do I fix CVE-2021-1614?

No fix has been published for CVE-2021-1614 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-1614 being exploited?

There is no known exploitation of CVE-2021-1614 in the wild and no public exploit code.

Sources

Also known as GHSA-8m79-xg2c-ggjm.