All vulnerabilities
CVE-2026-76499

Cisco Application Policy Infrastructure Controller Hardening Release: October 2026 - Improper Neutralization Vulnerabilities

Cisco Cisco Application Policy Infrastructure Controller (APIC)Network & edge
Open in ThreatlineRecord JSON
CVSS
9.8Critical
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.31%Chance of exploitation activity in the next 30 days, higher than 22% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published7 Oct 2026Updated 7 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

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.  

Text from CVE List

Affected versions 30

  • Cisco Application Policy Infrastructure Controller (APIC)affected: 5.2(1g)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 5.2(2e)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 5.2(2f)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 5.2(2g)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 5.2(2h)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 5.2(3f)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 5.2(3e)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 5.2(3g)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 5.2(4d)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 5.2(4e)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 5.2(5d)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 5.2(5c)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 6.0(1g)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 5.2(5e)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 5.2(4f)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 5.2(6e)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 6.0(1j)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 5.2(6g)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 5.2(7f)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 5.2(7g)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 6.0(2h)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 5.2(6h)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 5.2(4h)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 5.2(8d)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 6.0(2j)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 5.2(8e)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 6.0(3d)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 6.0(3e)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 5.2(8f)CVE List
  • Cisco Application Policy Infrastructure Controller (APIC)affected: 5.2(8g)CVE List

References 1