CVE-2021-1234 Cisco SD-WAN vManage Information Disclosure Vulnerabilities

Medium 5.3 Published 18 Nov 2024 Updated 18 Nov 2024

Unauthenticated remote attackers can view sensitive information via the cluster management interface when vManage is in cluster mode.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2021-1234?

CVE-2021-1234 is a medium-severity vulnerability in Cisco Catalyst Sd-Wan Manager, published on 18 Nov 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the cluster management interface of Cisco SD-WAN vManage Software could allow an unauthenticated, remote attacker to view sensitive information on an affected system. To be affected by this vulnerability, the vManage software must be in cluster mode. This vulnerability is due to the absence of authentication for sensitive information in the cluster management interface. An attacker could exploit this vulnerability by sending a crafted request to the cluster management interface of an affected system. A successful exploit could allow the attacker to view sensitive information on the affected system.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Weakness: CWE-497

Which versions are affected by CVE-2021-1234?

It affects 1 product.

Linux distribution packages (1)

pnpm openSUSE:Tumbleweed All versions 10.11.0-1.1

Products include Cisco Catalyst Sd-Wan Manager.

How do I fix CVE-2021-1234?

Upgrade to a fixed version.

Is CVE-2021-1234 being exploited?

There is no known exploitation of CVE-2021-1234 in the wild and no public exploit code.

All Cisco Catalyst Sd-Wan Manager vulnerabilities

Sources

Also known as GHSA-6r95-j355-78w9, openSUSE-SU-2025:15092-1.