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CVE-2026-76492

Cisco Expressway Series Software Hardening Release: October 2026 - NULL Pointer Vulnerabilities

High7.5EPSS 0.36%
Published
Updated
Reserved
Assigned by
cisco

Description

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.

Timeline

  1. ID reserved

    By cisco

  2. · 2 months later

    Published

  3. · 17 days later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2026-76492, by who scored it
Scored byCVSSScoreVector
ciscoCNA (assigner)3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVDNVD · Awaiting Analysis3.1High7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.36% · top 70% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: yes · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.

Weakness

Affected products

  • Cisco · Cisco TelePresence Video Communication Server (VCS) Expressway

    • affected X8.11.2
    • affected X8.6
    • affected X8.11.3
    • affected X8.2.2
    • affected X8.8.3
    • affected X8.11.0
    • affected X12.5.2
    • affected X8.1.1
    • affected X8.9
    • affected X12.5.1
    • affected X12.5.6
    • affected X8.7.3
    • affected X12.6.0
    • affected X8.11.1
    • affected X8.5
    • affected X8.9.1
    • affected X8.10.2
    • affected X8.8.2
    • affected X8.5.3
    • affected X8.1
    • affected X8.9.2
    • affected X8.11.4
    • affected X12.5.4
    • affected X8.8.1
    • affected X8.2.1
    • affected X8.5.1
    • affected X8.6.1
    • affected X8.1.2
    • affected X8.8
    • affected X8.10.0
    • affected X12.5.3
    • affected X8.10.1
    • affected X12.5.7
    • affected X8.10.3
    • affected X8.7.1
    • affected X8.2
    • affected X12.5.8
    • affected X8.7
    • affected X8.5.2
    • affected X12.5.9
    • and 54 more

What to do

Exploitation: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.

References (2)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .