CVE-2026-76498: critical vulnerability in Cisco Application Policy Infrastructure…
Cisco Application Policy Infrastructure Controller Hardening Release: October 2026 - Improper Access Control Vulnerabilities
Published
25Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.8
exploitation probability
—
observed exploitation
nono source reports it
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Application Policy Infrastructure Controller (APIC) 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-2026-76498 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-284.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
Cisco · Cisco Application Policy Infrastructure Controller (APIC)Related CVEs — Cisco Application Policy Infrastructure…
In the same product, most dangerous first.
CVE-2019-1889HIGHCisco Application Policy Infrastructure Controller REST API Privilege Escalation VulnerabilityEPSS 2.8%CVE-2021-1579HIGHCisco Application Policy Infrastructure Controller App Privilege Escalation VulnerabilityEPSS 2.1%CVE-2021-1578HIGHCisco Application Policy Infrastructure Controller Privilege Escalation VulnerabilityEPSS 2.0%CVE-2021-1580MEDIUMCisco Application Policy Infrastructure Controller Command Injection and File Upload VulnerabilitiesEPSS 1.8%CVE-2021-1577CRITICALCisco Application Policy Infrastructure Controller Arbitrary File Read and Write VulnerabilityEPSS 1.3%CVE-2019-1692MEDIUMCisco Application Policy Infrastructure Controller Web-Based Management Interface Usage Information Disclosure VulnerabilityEPSS 1.2%