Cisco Unified Communications Products Code Injection Vulnerability

Exploited in the wild. Listed by CISA on 2026-01-21; known to be used by ransomware.

4.5%likelihood of exploitation, next 30 days

92%of all CVEs are less likely

Nonecheck to confirm it

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.

No ready check is stored for this CVE. Confirm it by hand from the references.

References

https://nvd.nist.gov/vuln/detail/CVE-2026-20045

Use this check only on systems you are authorised to test. Where the data comes from