CVE-2026-76499
Received Received - Intake

Improper Neutralization in Cisco APIC

Publication date: 2026-10-07

Last updated on: 2026-10-07

Assigner: Cisco Systems, Inc.

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.  

CVSS Scores

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Meta Information

Published
2026-10-07
Last Modified
2026-10-07
Generated
2026-10-07
AI Q&A
2026-10-07
EPSS Evaluated
N/A
NVD
CVE-2026-76499
EUVD
EUVD-2026-94471

Affected Vendors & Products

Showing 65 associated CPEs
Vendor Product Version / Range
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(1g)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(2e)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(2f)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(2g)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(2h)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(3f)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(3e)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(3g)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(4d)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(4e)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(5d)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(5c)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.0(1g)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(5e)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(4f)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(6e)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.0(1j)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(6g)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(7f)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(7g)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.0(2h)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(6h)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(4h)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(8d)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.0(2j)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(8e)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.0(3d)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.0(3e)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(8f)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(8g)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.3(1d)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(8h)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.0(4c)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.3(2a)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.2(8i)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.0(5h)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.3(2b)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.0(3g)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.0(5j)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.3(2c)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.0(6c)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.1(1f)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.0(7e)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.3(2d)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.0(8d)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.0(8e)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.1(2f)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.0(8f)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.3(2e)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.1(2g)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 5.3(2f)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.0(9c)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.1(3f)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.0(9d)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.0(6g)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.0(6h)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.0(8h)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.1(3g)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.1(4h)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.0(9e)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.1(5e)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.2(1f)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.2(1g)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.0(9f)
Cisco Cisco Application Policy Infrastructure Controller (APIC) 6.2(2e)

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
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CWE ID Description
CWE-707 The product does not ensure or incorrectly ensures that structured messages or data are well-formed and that certain security properties are met before being read from an upstream component or sent to a downstream component.

Attack-Flow Graph

AI Quick Actions

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Executive Summary

CVE-2026-76499 is a vulnerability in Cisco's Application Policy Infrastructure Controller (APIC) related to improper neutralization issues classified under CWE-707. This means the software fails to properly neutralize user input, potentially allowing malicious input to alter intended behavior.

Impact Analysis

This vulnerability could allow attackers to execute arbitrary code, gain unauthorized access, or disrupt services by exploiting improper input handling in Cisco APIC. The high CVSS score (9.8) indicates severe impact, including confidentiality, integrity, and availability breaches.

Mitigation Strategies

Apply the latest security patches from Cisco for the APIC software to address the improper neutralization vulnerabilities. Monitor Cisco's security advisories for updates and follow their hardening recommendations.

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