CVE-2020-3130: Cisco Unity Connection Directory Traversal Vulnerability

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-09-23 · updated 2026-06-17
Weakness: CWE-22

Description

A vulnerability in the web management interface of Cisco Unity Connection could allow an authenticated remote attacker to overwrite files on the underlying filesystem. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web management interface. A successful exploit could allow the attacker to overwrite files on the underlying filesystem of an affected system. Valid administrator credentials are required to access the system.

Affected products

Cisco Unity Connection: from 11.0 before 11.5su7; from 12.0 before 12.5su2 — fixed in 11.5su7, 12.5su2

How to fix

Upgrade to a fixed version: Cisco Unity Connection 11.5su7, 12.5su2. Check the vendor advisory for mitigations.

References

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