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.
 

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Cisco Cisco Application Policy Infrastructure Controller (APIC) unknown
Version Status Constraints
5.2(1g) affected —
5.2(2e) affected —
5.2(2f) affected —
5.2(2g) affected —
5.2(2h) affected —
5.2(3f) affected —
5.2(3e) affected —
5.2(3g) affected —
5.2(4d) affected —
5.2(4e) affected —
5.2(5d) affected —
5.2(5c) affected —
6.0(1g) affected —
5.2(5e) affected —
5.2(4f) affected —
5.2(6e) affected —
6.0(1j) affected —
5.2(6g) affected —
5.2(7f) affected —
5.2(7g) affected —
6.0(2h) affected —
5.2(6h) affected —
5.2(4h) affected —
5.2(8d) affected —
6.0(2j) affected —
5.2(8e) affected —
6.0(3d) affected —
6.0(3e) affected —
5.2(8f) affected —
5.2(8g) affected —
5.3(1d) affected —
5.2(8h) affected —
6.0(4c) affected —
5.3(2a) affected —
5.2(8i) affected —
6.0(5h) affected —
5.3(2b) affected —
6.0(3g) affected —
6.0(5j) affected —
5.3(2c) affected —
6.0(6c) affected —
6.1(1f) affected —
6.0(7e) affected —
5.3(2d) affected —
6.0(8d) affected —
6.0(8e) affected —
6.1(2f) affected —
6.0(8f) affected —
5.3(2e) affected —
6.1(2g) affected —
5.3(2f) affected —
6.0(9c) affected —
6.1(3f) affected —
6.0(9d) affected —
6.0(6g) affected —
6.0(6h) affected —
6.0(8h) affected —
6.1(3g) affected —
6.1(4h) affected —
6.0(9e) affected —
6.1(5e) affected —
6.2(1f) affected —
6.2(1g) affected —
6.0(9f) affected —
6.2(2e) affected —

No data.

No data.

No data.

Project Subscriptions

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-apic-UOXWtfh cve-icon cve-icon
History

Wed, 07 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
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.  
Title Cisco Application Policy Infrastructure Controller Hardening Release: October 2026 - Improper Neutralization Vulnerabilities
Weaknesses CWE-707
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2026-10-07T17:48:13.369Z

Reserved: 2026-08-19T12:02:03.641Z

Link: CVE-2026-76499

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-07T17:17:01.820

Modified: 2026-10-07T18:17:30.330

Link: CVE-2026-76499

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses