Is CVE-2026-20035 actively exploited?

No active exploitation of CVE-2026-20035 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-20035 be exploited remotely?

Yes. CVE-2026-20035 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-20035?

CVE-2026-20035 has a CVSS score of 7.2 (HIGH).

HOME VULNERABILITIESCVE-2026-20035

HIGH

CVE-2026-20035

CWE-918Published: May 6, 2026· Updated: May 6, 2026

7.2

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:5.0th

Official 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.

NVD Source

Technical Analysis

CVE-2026-20035 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.