CVE-2026-76499 Other in Cisco Application Policy Infrastructure Controller (APIC)

Critical 9.8 Published Updated

Cisco APIC contains improper neutralization vulnerabilities identified during internal security reviews, requiring a software hardening patch.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-76499?

CVE-2026-76499 is a critical vulnerability in Cisco Application Policy Infrastructure Controller (APIC), published on 7 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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-2026-76499 are related to improper neutralization issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-707.  

Weakness: CWE-707

Which versions are affected by CVE-2026-76499?

How do I fix CVE-2026-76499?

No fix has been published for CVE-2026-76499 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-76499 being exploited?

There is no known exploitation of CVE-2026-76499 in the wild and no public exploit code.

Sources

Also known as GHSA-4mrw-vr59-vgf2.

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