Cisco Unified CM Flaw Exploited After PoC Reveals File-Write Path to Root

Threat actors have begun to exploit a recently disclosed critical security flaw impacting Cisco Unified Communications Manager Unified CM and Unified Communications Manager Session Management Edition Unified CM SME. The vulnerability, tracked as CVE-2026-20230 CVSS score: 8.6, is a case of improp...

Exploit for CVE-2026-20230

CVE-2026-20230 Scanner A Python-based scanner and validation...

CVE-2026-20230

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 ...

Cisco Unified Communications Manager (CUCM) 14.x < 14SU6 / 15.x < 15SU5 SSRF (cisco-sa-cucm-ssrf-cXPnHcW)

According to its self-reported version, Cisco Unified Communications Manager is affected by a server-side request forgery SSRF vulnerability. - A vulnerability in Cisco Unified Communications Manager Unified CM and Cisco Unified Communications Manager Session Management Edition Unified CM SME cou...

Cisco Patches CVE-2026-20230 in Unified CM as Exploit Code Goes Public

Cisco has patched a bug in Unified Communications Manager that lets an unauthenticated attacker on the network write files to the box and, from there, climb to root. It is tracked as CVE-2026-20230, and proof-of-concept exploit code is already public. Cisco's PSIRT says it has not seen the flaw...

Lack of transparency in Cisco Unified Communications Manager

Cisco has identified a vulnerability in Unified Communications Manager CM and Unified Communications Manager Session Management Edition CM SME. A malicious individual could exploit this vulnerability to carry out a Server-Side Request Forgery SSRF attack. Successful exploitation could result in t...

CVE-2026-20230

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 ...

CVE-2026-20230

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 ...

CVE-2026-20230

CVE-2026-20230 affects Cisco Unified Communications Manager (CUCM) and Unified CM SME. The issue is due to improper input validation in specific HTTP requests, enabling an unauthenticated attacker to perform server-side request forgery (SSRF) and, if exploited, write files on the OS that could be...

EUVD-2026-34137

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 ...

CVE-2026-20230 Cisco Unified Communications Manager Server-Side Request Forgery Vulnerability

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 ...

CVE-2026-20230 Cisco Unified Communications Manager Server-Side Request Forgery Vulnerability

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 ...

Cisco Unified Communications Manager Server-Side Request Forgery Vulnerability

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 ...

PT-2026-45987

Name of the Vulnerable Software and Affected Versions Cisco Unified Communications Manager affected versions not specified Cisco Unified Communications Manager Session Management Edition affected versions not specified Description An improper input validation flaw in the WebDialer service allows ...

CVE-2013-3450

Cross-site request forgery CSRF vulnerability in the User WebDialer page in Cisco Unified Communications Manager Unified CM allows remote attackers to hijack the authentication of arbitrary users for requests that dial calls, aka Bug ID CSCui13028...

Cross site request forgery (csrf)

Cross-site request forgery CSRF vulnerability in the User WebDialer page in Cisco Unified Communications Manager Unified CM allows remote attackers to hijack the authentication of arbitrary users for requests that dial calls, aka Bug ID CSCui13028...

CVE-2013-3450

Cisco Unified Communications Manager's User WebDialer is affected by CVE-2013-3450, a CSRF vulnerability caused by insufficient CSRF protections. An unauthenticated, remote attacker could exploit this to hijack a user’s authenticated session and initiate dialed calls on behalf of the affected use...

Cisco Unified Communications Manager User Web Dialer Cross-Site Request Forgery Vulnerability

A vulnerability in the User WebDialer page of Cisco Unified Communications Manager Unified CM could allow an unauthenticated, remote attacker to conduct a cross-site request forgery CSRF attack. The vulnerability is due to insufficient CSRF protections. An attacker could exploit this vulnerabilit...