CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:NA vulnerability in Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P), Cisco Unity Connection, and Cisco Webex Calling Dedicated Instance could allow an unauthenticated, remote attacker to execute arbitrary commands on the underlying operating system of an affected device. This vulnerability is due to improper validation of user-supplied input in HTTP requests. An attacker could exploit this vulnerability by sending a sequence of crafted HTTP requests to the web-based management interface of an affected device. A successful exploit could allow the attacker to obtain user-level access to the underlying operating system and then elevate privileges 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.
Cisco noted that a PoC had been available for CVE-2026-20230 when it announced patches in early June. The post Hackers Exploiting Cisco Unified CM Vulnerability appeared first on SecurityWeek .
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…
Cisco has issued a critical security update addressing a vulnerability (CVE-2026-20230) in its Unified Communications Manager (Unified CM) software. This flaw allows attackers to gain root privileges through SSRF attacks…
