Skip to content
CVE Tracker
  • Newest CVEsPage
  • Recently added to KEVPage
  • Rising exploitation (EPSS)Page
  • Weekly digestPage
  • StatisticsPage
  • WatchlistPage
  • API documentationPage
  • MCP serverPage
  • Data sourcesPage
  • ChangelogPage
  • AboutPage
  • How it's builtPage
Back

CVE-2026-20035

Cisco Unity Connection Server-Side Request Forgery Vulnerability

High7.2EPSS 0.30%
Published
Updated
Reserved
Assigned by
cisco

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.

Scores

CVSS scores of CVE-2026-20035, by who scored it
Scored byCVSSScoreVector
ciscoCNA (assigner)3.1High7.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
NVDNVD · Analyzed3.1High7.2CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
EPSS (exploitation in 30 days)
0.30% · top 77% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.2.

Weakness

Affected products

  • Cisco · Cisco Unity Connection

    • affected 12.5(1)
    • affected 12.5(1)SU1
    • affected 12.5(1)SU2
    • affected 12.5(1)SU3
    • affected 12.5(1)SU4
    • affected 14
    • affected 12.5(1)SU5
    • affected 14SU1
    • affected 12.5(1)SU6
    • affected 14SU2
    • affected 12.5(1)SU7
    • affected 14SU3
    • affected 12.5(1)SU8
    • affected 14SU3a
    • affected 12.5(1)SU8a
    • affected 15
    • affected 15SU1
    • affected 14SU4
    • affected 12.5(1)SU9
    • affected 15SU2
    • affected 15SU3

What to do

Exploitation: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

CVE-2026-20035 badge
[![CVE-2026-20035](https://trackcve.app/badge/CVE-2026-20035.svg)](https://trackcve.app/cve/CVE-2026-20035)

Record last updated .