CVE-2024-20272

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-01-17 · updated 2026-06-17
Weakness: CWE-434

Description

A vulnerability in the web-based management interface of Cisco Unity Connection could allow an unauthenticated, remote attacker to upload arbitrary files to an affected system and execute commands on the underlying operating system. This vulnerability is due to a lack of authentication in a specific API and improper validation of user-supplied data. An attacker could exploit this vulnerability by uploading arbitrary files to an affected system. A successful exploit could allow the attacker to store malicious files on the system, execute arbitrary commands on the operating system, and elevate privileges to root.

Affected products

Cisco Unity Connection: before 12.5.1.19017-4; from 14.0 before 14.0.1.14006-5 — fixed in 12.5.1.19017-4, 14.0.1.14006-5

How to fix

Upgrade to a fixed version: Cisco Unity Connection 12.5.1.19017-4, 14.0.1.14006-5. Check the vendor advisory for mitigations.

References

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