Cisco patches 34 flaws, including critical Expressway RCE CVE-2026-76466
Fixes include Expressway X15.5.20 and Snort 3.12.4.0; Cisco says none are known to be exploited.
72
CVE-2026-76473
Resource lifetime issues in Cisco UC products (CWE-74)
- CVSS 3.1
- 9.8 critical
- EPSS
- —
- Published
- ·
- Modified
AI analysisSummaries by Vani AI
Cisco groups internally found flaws in Emergency Responder, Prime Collaboration Deployment, Unified CM, Unified CM IM&P, Unified CM SME, and Unity Connection under improper control of a resource through its lifetime (CWE-74). The issues are fixed in software hardening releases. Cisco has not listed affected builds, the exact trigger, or what an attacker gains beyond that grouping.
What to do: Apply Cisco's software hardening releases that address CVE-2026-76473. Cisco has not named fixed versions or a workaround.
| Product | Affected |
|---|---|
| Cisco Emergency Responder | — |
| Cisco Prime Collaboration Deployment | — |
| Cisco Unified Communications Manager (Unified CM) | — |
| Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P) | — |
| Cisco Unified Communications Manager Session Management Edition (Unified CM SME) | — |
| Cisco Unity Connection | — |
Estimated exposure
No basis for an estimate.
Order-of-magnitude estimate by the model from install counts, market share and public scan data it knows; verify before quoting.
Description · NVD
As part of Cisco's ongoing commitment to proactive security and product quality, engineering teams for Cisco Emergency Responder, Cisco Prime Collaboration Deployment, Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), and Cisco Unity Connection have conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76473 are related to issues concerning improper control of a resource through its lifetime that are grouped under the Common Weakness Enumeration (CWE) Class CWE-74.
- Weakness
- CWE-74
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H