Cisco released a security advisory for a vulnerability affecting Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME). A remote attacker could exploit this vulnerability to cause a denial-of-service condition. For updates addressing lower severity vulnerabilities, see the Cisco Security Advisories page.

CISA encourages users and administrators to review the advisories and apply the necessary updates.

Source: https://www.cisa.gov/uscert/ncas/current-activity/2023/01/20/cisco-releases-security-advisory-unified-cm-and-unified-cm-sme