by Kastro
Paper/Archive/CVE-2026-76500

CVE-2026-76500

Cisco Cisco Application Policy Infrastructure Controller (APIC) — Cisco Application Policy Infrastructure Controller Hardening Release: October 2026 - Improper Control of a Resource Through its Lifetime Vulnerabilities

EPSS 0.3%CVSS 9.8
critical.is priorityof 100
35
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 25.5.255 × 205.1No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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-2026-76500 are related to issues with improper control of a resource through its lifetime that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-664.

Affected

ProductAffectedFixed inSource
Cisco Application Policy Infrastructure Controller (APIC)5.2(1g)–CNA
Cisco Application Policy Infrastructure Controller (APIC)5.2(2e)–CNA
Cisco Application Policy Infrastructure Controller (APIC)5.2(2f)–CNA
Cisco Application Policy Infrastructure Controller (APIC)5.2(2g)–CNA
Cisco Application Policy Infrastructure Controller (APIC)5.2(2h)–CNA
Cisco Application Policy Infrastructure Controller (APIC)5.2(3f)–CNA
Cisco Application Policy Infrastructure Controller (APIC)5.2(3e)–CNA
Cisco Application Policy Infrastructure Controller (APIC)5.2(3g)–CNA
Cisco Application Policy Infrastructure Controller (APIC)5.2(4d)–CNA
Cisco Application Policy Infrastructure Controller (APIC)5.2(4e)–CNA
Cisco Application Policy Infrastructure Controller (APIC)5.2(5d)–CNA
Cisco Application Policy Infrastructure Controller (APIC)5.2(5c)–CNA

Scores by source

cisco (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refsec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-apic-UOXWtfh