Critical
Cisco Application Policy Infrastructure Controller Hardening Release: October 2026 - Improper Neutralization Vulnerabilities
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.
Announced Source revision 1
Original source ↗CVE-2026-76499
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-76499
Cisco Application Policy Infrastructure Controller (APIC)
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Cisco",
"product": "Cisco Application Policy Infrastructure Controller (APIC)",
"versions": [
{
"status": "affected",
"version": "5.2(1g)"
},
{
"status": "affected",
"version": "5.2(2e)"
},
{
"status": "affected",
"version": "5.2(2f)"
},
{
"status": "affected",
"version": "5.2(2g)"
},
{
"status": "affected",
"version": "5.2(2h)"
},
{
"status": "affected",
"version": "5.2(3f)"
},
{
"status": "affected",
"version": "5.2(3e)"
},
{
"status": "affected",
"version": "5.2(3g)"
},
{
"status": "affected",
"version": "5.2(4d)"
},
{
"status": "affected",
"version": "5.2(4e)"
},
{
"status": "affected",
"version": "5.2(5d)"
},
{
"status": "affected",
"version": "5.2(5c)"
},
{
"status": "affected",
"version": "6.0(1g)"
},
{
"status": "affected",
"version": "5.2(5e)"
},
{
"status": "affected",
"version": "5.2(4f)"
},
{
"status": "affected",
"version": "5.2(6e)"
},
{
"status": "affected",
"version": "6.0(1j)"
},
{
"status": "affected",
"version": "5.2(6g)"
},
{
"status": "affected",
"version": "5.2(7f)"
},
{
"status": "affected",
"version": "5.2(7g)"
},
{
"status": "affected",
"version": "6.0(2h)"
},
{
"status": "affected",
"version": "5.2(6h)"
},
{
"status": "affected",
"version": "5.2(4h)"
},
{
"status": "affected",
"version": "5.2(8d)"
},
{
"status": "affected",
"version": "6.0(2j)"
},
{
"status": "affected",
"version": "5.2(8e)"
},
{
"status": "affected",
"version": "6.0(3d)"
},
{
"status": "affected",
"version": "6.0(3e)"
},
{
"status": "affected",
"version": "5.2(8f)"
},
{
"status": "affected",
"version": "5.2(8g)"
},
{
"status": "affected",
"version": "5.3(1d)"
},
{
"status": "affected",
"version": "5.2(8h)"
},
{
"status": "affected",
"version": "6.0(4c)"
},
{
"status": "affected",
"version": "5.3(2a)"
},
{
"status": "affected",
"version": "5.2(8i)"
},
{
"status": "affected",
"version": "6.0(5h)"
},
{
"status": "affected",
"version": "5.3(2b)"
},
{
"status": "affected",
"version": "6.0(3g)"
},
{
"status": "affected",
"version": "6.0(5j)"
},
{
"status": "affected",
"version": "5.3(2c)"
},
{
"status": "affected",
"version": "6.0(6c)"
},
{
"status": "affected",
"version": "6.1(1f)"
},
{
"status": "affected",
"version": "6.0(7e)"
},
{
"status": "affected",
"version": "5.3(2d)"
},
{
"status": "affected",
"version": "6.0(8d)"
},
{
"status": "affected",
"version": "6.0(8e)"
},
{
"status": "affected",
"version": "6.1(2f)"
},
{
"status": "affected",
"version": "6.0(8f)"
},
{
"status": "affected",
"version": "5.3(2e)"
},
{
"status": "affected",
"version": "6.1(2g)"
},
{
"status": "affected",
"version": "5.3(2f)"
},
{
"status": "affected",
"version": "6.0(9c)"
},
{
"status": "affected",
"version": "6.1(3f)"
},
{
"status": "affected",
"version": "6.0(9d)"
},
{
"status": "affected",
"version": "6.0(6g)"
},
{
"status": "affected",
"version": "6.0(6h)"
},
{
"status": "affected",
"version": "6.0(8h)"
},
{
"status": "affected",
"version": "6.1(3g)"
},
{
"status": "affected",
"version": "6.1(4h)"
},
{
"status": "affected",
"version": "6.0(9e)"
},
{
"status": "affected",
"version": "6.1(5e)"
},
{
"status": "affected",
"version": "6.2(1f)"
},
{
"status": "affected",
"version": "6.2(1g)"
},
{
"status": "affected",
"version": "6.0(9f)"
},
{
"status": "affected",
"version": "6.2(2e)"
}
],
"defaultStatus": "unknown"
}
]- Related CVEs
- CVE-2026-76499
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #12071 · Revision 1
- Added to Heist Feed
- Publisher date