Cisco Critical Vulnerabilities - 20260127001¶
Overview¶
Cisco has released an advisory addressing multiple vulnerabilities across its Unified Communications products. A remote code execution vulnerability allows an unauthenticated attacker to send crafted HTTP requests to the management interface, enabling user‑level access and potential escalation to root.
What is vulnerable?¶
| Product(s) Affected | Version(s) | CVE | CVSS | Severity |
|---|---|---|---|---|
| Cisco UCM Cisco UCM Session Manager Cisco UCM IM Prescence Service Cisco Unity Connection |
All versions prior to 14su5 15 prior to 15su4 |
CVE-2026-20045 |
9.8 | Critical |
What has been observed?¶
The WASOC has not received any reports of exploitation of this vulnerability on Western Australian Government networks at the time of writing.
Recommendation¶
The WASOC recommends administrators apply the solutions as per vendor instructions to all affected devices within expected timeframes (refer Patch Management):