SSRF in Cisco Unity Connection
CVE-2026-20035
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (21.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 21.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Cisco Unity Connection — versions 12.5(1), 12.5(1)SU1, 12.5(1)SU2
- Cisco Unity Connection — versions 14.0, 14su1, 14su2
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-20035?
- CVE-2026-20035 is a high-severity vulnerability in Cisco Unity Connection, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.2/10. Published 2026-05-06.
- How severe is CVE-2026-20035?
- High severity. CVSS v3 base score is 7.2 out of 10.