Actively exploited
Listed in CISA’s Known Exploited Vulnerabilities catalog since January 21, 2026.
CVE-2026-20045
Cisco Unified Communications Products Code Injection Vulnerability
Cisco · Unified Communications Manager
Added to KEV January 21, 2026
Alert details
- Source feed
- CISA KEV
- CVE ID
- CVE-2026-20045
- CWE
- CWE-94
- Affected products
- Unified Communications Manager · Cisco Unified Communications Manager · Cisco
What happened
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 contain a code injection vulnerability that could allow the attacker to obtain user-level access to the underlying operating system and then elevate privileges to root.
What it means for your business
Cisco Unified Communications Manager is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-20045). 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 contain a code injection vulnerability that could allow the attacker to obtain user-level access to the underlying operating system and then elevate privileges to root. CISA remediation due date: 2026-02-11. If you need help checking exposure, call (864) 335-9223.
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA due date: February 11, 2026
Sources
Related briefs
Cisco Catalyst SD-WAN Manager Hex Encoding Vulnerability
Cisco Catalyst SD-WAN Manager is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-76504). Cisco Catalyst SD-WAN Manager contains a hex encoding vulnerability that could allow an unauthenticated, remote attacker to access an affected system with privileges of the admin user due to improper handling of URI encoding in an HTTP request. CISA remediation due date: 2026-10-03. If you need help checking exposure, call (864) 335-9223.
Cisco Identity Services Engine Incorrect Use of Privileged APIs Vulnerability
Cisco Identity Services Engine is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-76460). Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) contain an incorrect use of privileged APIs vulnerability that could allow an unauthenticated, remote attacker to gain unauthorized access to the affected device by bypassing the web-based management interface. CISA remediation due date: 2026-09-19. If you need help checking exposure, call (864) 335-9223.
Cisco Secure Email Gateway SQL Injection Vulnerability
Cisco Secure Email Gateway is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-76461). Cisco AsyncOS software for Cisco Secure Email Gateway (SEG) contains a SQL injection vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary commands with root privileges on the underlying operating system. CISA remediation due date: 2026-09-17. If you need help checking exposure, call (864) 335-9223.
Cisco Firewall Management Center Authentication Bypass Using an Alternate Path or Channel Vulnerability
Cisco Secure Firewall Management Center (FMC) and Security Cloud Control (SCC) Firewall Management is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-20079). Cisco Secure Firewall Management Center (FMC) Software and Cisco Security Cloud Control (SCC) Firewall Management contain an authentication Bypass using an alternate path or channel vulnerability that could allow an unauthenticated, remote attacker to bypass authentication and execute script files on an affected device to obtain root access to the underlying operating system. CISA remediation due date: 2026-09-12. If you need help checking exposure, call (864) 335-9223.
Need help patching?
PremierePC monitors KEV alerts for managed clients and helps teams prioritize remediation before attackers do.