CVE-2026-20035
Cisco Unity Connection Server-Side Request Forgery Vulnerability
Description
A vulnerability in the web UI of Cisco Unity Connection Web Inbox could allow an unauthenticated, remote attacker to conduct SSRF attacks through an affected device. This vulnerability is due to improper input validation for specific HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to send arbitrary network requests that are sourced from the affected device.
Weakness: CWE-918
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco Unity Connection | Other Products | cna-assigner |
Vendor-reported products (1)
- Cisco · Cisco Unity Connection
Vendor advisory
cisco-sa-unity-rce-ssrf-hENhuASy
Cisco Unity Connection Remote Code Execution and Server-Side Request Forgery Vulnerabilities
Cisco’s rating: High (advisory CVSS 8.8) · Published May 6, 2026
Bug IDs: CSCwq36774 , CSCwq36834
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from