CVE-2026-20034
Cisco Unity Connection Remote Code Execution Vulnerability
Severity
High 8.8
CVSS 3.1
Exploited
Not listed
EPSS
0.007
50.1th percentile
Discovered by
Third party
Published by the vendor
Published
May 6, 2026
Assigned by cisco
Description
A vulnerability in the web-based management interface of Cisco Unity Connection could allow an authenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by submitting a crafted API request. A successful exploit could allow the attacker to execute arbitrary code as root, possibly resulting in the complete compromise of a targeted device. To exploit this vulnerability, the attacker must have valid user credentials on the affected device.
Weakness: CWE-35
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco Unity Connection | Other Products | cna-assigner |
Vendor-reported affected versions (1)
- Cisco · Cisco Unity Connection