CVE-2026-76499 – Cisco Application Policy Infrastructure Controller (APIC)
“When the controller that runs your data center fabric has three critical holes, every connected workload is at risk.”
Cisco has released software hardening updates for the Cisco Application Policy Infrastructure Controller (APIC). The updates fix three Critical vulnerabilities that Cisco's engineering team found during an internal security review. CVE-2026-76498 has a CVSS score of 9.8, Critical severity. It is an improper access control flaw that allows elevation of privilege. CVE-2026-76499 has a CVSS score of 9.8, Critical severity. It is an improper neutralization flaw. CVE-2026-76500 has a CVSS score of 9.8, Critical severity. It involves improper control of a resource through its lifetime.
APIC is the central policy and management point for the Cisco data center fabric. A compromised controller gives an attacker control over network policy for every workload it manages. Apply the hardening releases on a same-day schedule.
Key Details
- Attack Vector
- Network
- Attack Complexity
- Low
- Privileges Required
- None
- User Interaction
- None
- CWE Classification
- CWE-707