CVE-2026-20230
HIGH KEVCisco Unified Communications Manager - Server-Side Request Forgery (SSRF)
Title source: ruleExploitation Summary
CVE-2026-20230 is actively exploited and listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added June 25, 2026. EIP tracks 4 public exploits from researchers including HORKimhab, W5M1n9, HalilDeniz.
AI-analyzed exploit summary This repository contains a detailed writeup for CVE-2026-20230, describing an SSRF vulnerability in Cisco Unified Communications Manager that could lead to privilege escalation to root. It includes references to external PoC repositories but does not contain exploit code itself.
Description
A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an unauthenticated, remote attacker to conduct server-side request forgery (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 write files to the underlying operating system that could be used later to elevate to root. Note: Cisco has assigned this security advisory a Security Impact Rating (SIR) of Critical rather than High as the score indicates. The reason is that exploitation of this vulnerability could result in an attacker elevating privileges to root. Note: To exploit this vulnerability, the WebDialer service must be enabled. WebDialer is disabled by default.
Exploits (4)
This repository contains a detailed writeup for CVE-2026-20230, describing an SSRF vulnerability in Cisco Unified Communications Manager that could lead to privilege escalation to root. It includes references to external PoC repositories but does not contain exploit code itself.
This repository contains a functional exploit for CVE-2026-20230, targeting Cisco Unified Communications Manager (CUCM) with an SSRF vulnerability that leads to arbitrary file write and RCE. The PoC demonstrates a multi-step attack chain involving hostname discovery, SSRF to create an Axis service, and file write to achieve command execution.
The repository contains a Python-based scanner for detecting Cisco Unified Communications Manager (Unified CM) instances potentially vulnerable to CVE-2026-20230. It checks for WebDialer exposure and includes a placeholder for a PoC file-write test, but lacks functional exploit code.
The repository contains a scanner for CVE-2026-20230, which targets Cisco Unified CM's WebDialer service. It checks for the presence of vulnerable endpoints and attempts to detect WebDialer functionality but lacks a functional exploit payload.
References (3)
Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N