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    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.

    Published:May 6, 2026
    Last Modified:May 7, 2026
    EPS:May 6, 2026
    EPSS Score:0.00018
    CVSS Score:7.2

    Affected Products

    Vendor
    Cisco
    Product
    Unity Connection

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-664 Server Side Request Forgery

    Related CVEs

    CVE-2026-20034 (CVSS 8.8) — A vulnerability in the web-based management interface of Cisco Unity Connection could allow an authenticated, …
    CVE-2026-20059 (CVSS 6.1) — A vulnerability in the web-based management interface of Cisco Unity Connection could allow an unauthenticated…
    CVE-2026-20061 (CVSS 4.3) — A vulnerability in the web-based management interface of Cisco Unity Connection could allow an authenticated, …
    CVE-2026-20060 (CVSS 4.7) — A vulnerability in the web-based management interface of Cisco Unity Connection could allow an unauthenticated…
    CVE-2026-20081 (CVSS 6.5) — Multiple vulnerabilities in Cisco Unity Connection could allow an authenticated, remote attacker to downl…
    CVE-2026-20078 (CVSS 6.5) — Multiple vulnerabilities in Cisco Unity Connection could allow an authenticated, remote attacker to downl…
    CVE-2026-20045 (CVSS 8.2) — A vulnerability in Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager Ses…
    CVE-2025-20278 (CVSS 6) — A vulnerability in the CLI of multiple Cisco Unified Communications products could allow an authenticated, loc…
    CVE-2024-20253 (CVSS 9.9) — A vulnerability in multiple Cisco Unified Communications and Contact Center Solutions products could allow an …
    CVE-2024-20305 (CVSS 4.8) — A vulnerability in the web-based management interface of Cisco Unity Connection could allow an authenticated, …

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High