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01 Record

CVE-2026-76492

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

HighPUBLISHEDCNA: cisco
CNA base score7.5 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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02 Description

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

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.36% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 29.4% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Awaiting Analysis. NVD last modified this record on 2026-10-22.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-10-21 16:17Z7 DAYS AGO
Last updated
2026-10-22 13:37Z6 DAYS AGO
Reserved
2026-08-19
Assigning CNA
cisco
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
  • CWE-476NULL Pointer DereferenceBase
Data version
5.2
Document digest
ad204011e4767a6d758a76ea8891b1b074a3f231c25d271aa570f3f82c346882

05 Affected products

VendorProductVersionsPlatforms
CiscoCisco TelePresence Video Communication Server (VCS) ExpresswayX8.11.2, X8.6, X8.11.3, X8.2.2, X8.8.3, X8.11.0, X12.5.2, X8.1.1, X8.9, X12.5.1, X12.5.6, X8.7.3, X12.6.0, X8.11.1, X8.5, X8.9.1, X8.10.2, X8.8.2, X8.5.3, X8.1, X8.9.2, X8.11.4, X12.5.4, X8.8.1, X8.2.1, X8.5.1, X8.6.1, X8.1.2, X8.8, X8.10.0, X12.5.3, X8.10.1, X12.5.7, X8.10.3, X8.7.1, X8.2, X12.5.8, X8.7, X8.5.2, X12.5.9, X12.5.0, X8.10.4, X8.7.2, X12.5.5, X12.6.1, X12.6.2, X12.6.3, X12.6.4, X12.7.0, X12.7.1, X14.0.0, X14.0.1, X14.0.2, X14.0.3, X14.0.4, X14.0.5, X14.0.6, X14.0.7, X14.0.8, X14.2.0, X14.0.9, X14.2.1, X14.2.2, X14.0.11, X14.2.5, X14.0.10, X14.2.6, X14.2.7, X14.3.0, X14.3.1, X14.3.2, X14.3.3, X15.0.0, X14.3.4, X14.3.5, X15.0.1, X15.0.2, X15.0.3, X14.3.6, X15.2.0, X15.2.1, X15.2.2, X15.2.3, X14.3.7, X15.2.4., X15.2.4, X15.3.0, X15.3.1, X15.3.2, X15.4.0, X15.5.0, X15.5.1, X15.5.2, X15.5.3—

06 References