NULL pointer dereference in Cisco Telepresence Video Communication Server (Vcs) Expressway

CVE-2026-76492

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Expressway Series software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities.   The vulnerabilities tracked by CVE-2026-76492 are related to issues concerning null pointers that are grouped under the Common Weakness Enumeration (CWE) Base CWE-476.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-76492?
CVE-2026-76492 is a high-severity vulnerability in Cisco Telepresence Video Communication Server (Vcs) Expressway, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2026-10-21.
How severe is CVE-2026-76492?
High severity. CVSS v3 base score is 7.5 out of 10.