TI-2026-69241 Aliases CVE-2026-76499 GHSA-4mrw-vr59-vgf2

Improper neutralization flaws in Cisco APIC controller

MEDIUM 49CWE-707Published 2026-10-07 · Updated 2026-11-07

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: —
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

Multiple Cisco Application Policy Infrastructure Controller (APIC) releases are affected, starting with 5.2(1g). The flaws are improper neutralization issues grouped under CWE-707 and were found in an internal security review. An unauthenticated remote attacker can fully compromise confidentiality, integrity and availability.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.  

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00307 23rd percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Cisco	Cisco Application Policy Infrastructure Controller (APIC)	5.2(1g); 5.2(2e); 5.2(2f); 5.2(2g); 5.2(2h); 5.2(3f); 5.2(3e); 5.2(3g); 5.2(4d); 5.2(4e); 5.2(5d); 5.2(5c); 6.0(1g); 5.2(5e); 5.2(4f); 5.2(6e); 6.0(1j); 5.2(6g); 5.2(7f); 5.2(7g); 6.0(2h); 5.2(6h); 5.2(4h); 5.2(8d); 6.0(2j); 5.2(8e); 6.0(3d); 6.0(3e); 5.2(8f); 5.2(8g); 5.3(1d); 5.2(8h); 6.0(4c); 5.3(2a); 5.2(8i); 6.0(5h); 5.3(2b); 6.0(3g); 6.0(5j); 5.3(2c); 6.0(6c); 6.1(1f); 6.0(7e); 5.3(2d); 6.0(8d); 6.0(8e); 6.1(2f); 6.0(8f); 5.3(2e); 6.1(2g); 5.3(2f); 6.0(9c); 6.1(3f); 6.0(9d); 6.0(6g); 6.0(6h); 6.0(8h); 6.1(3g); 6.1(4h); 6.0(9e); 6.1(5e); 6.2(1f); 6.2(1g); 6.0(9f); 6.2(2e)	—	No fix listed	CNA

Cisco Application Policy Infrastructure Controller (APIC) VendorCisco Affected 5.2(1g); 5.2(2e); 5.2(2f); 5.2(2g); 5.2(2h); 5.2(3f); 5.2(3e); 5.2(3g); 5.2(4d); 5.2(4e); 5.2(5d); 5.2(5c); 6.0(1g); 5.2(5e); 5.2(4f); 5.2(6e); 6.0(1j); 5.2(6g); 5.2(7f); 5.2(7g); 6.0(2h); 5.2(6h); 5.2(4h); 5.2(8d); 6.0(2j); 5.2(8e); 6.0(3d); 6.0(3e); 5.2(8f); 5.2(8g); 5.3(1d); 5.2(8h); 6.0(4c); 5.3(2a); 5.2(8i); 6.0(5h); 5.3(2b); 6.0(3g); 6.0(5j); 5.3(2c); 6.0(6c); 6.1(1f); 6.0(7e); 5.3(2d); 6.0(8d); 6.0(8e); 6.1(2f); 6.0(8f); 5.3(2e); 6.1(2g); 5.3(2f); 6.0(9c); 6.1(3f); 6.0(9d); 6.0(6g); 6.0(6h); 6.0(8h); 6.1(3g); 6.1(4h); 6.0(9e); 6.1(5e); 6.2(1f); 6.2(1g); 6.0(9f); 6.2(2e) Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:cisco:application_policy_infrastructure_controller::::::::	—	—	Cisco

cpe:2.3:a:cisco:application_policy_infrastructure_controller:*:*:*:*:*:*:*:* Versions — — ·Cisco

Remediation

The sources list no fixed version for Cisco Application Policy Infrastructure Controller (APIC).

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

2026-10-07 Threatist record created from CVE-2026-76499
2026-10-07 CISA SSVC decision points changed
2026-10-07 Alias added: GHSA-4mrw-vr59-vgf2

References

Other 1

cisco-sa-hardening-apic-UOXWtfh

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TI-2026-53488 Cisco Identity Services Engine Authentication Bypass Vulnerability KEVCVSS 3.1CRITICAL 10.0
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TI-2026-16344 Cisco Secure Firewall Management Center Software Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 10.0

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Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences