TI-2026-69208 Aliases CVE-2026-20321 GHSA-r72r-fhv8-5qgq

Command injection in Cisco APIC web management API

LOW 31CWE-544Published 2026-10-07 · Updated 2026-10-08

Key facts

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

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

Summary

Cisco Application Policy Infrastructure Controller (APIC) is affected from 5.3(1d), 5.3(2a), 5.3(2b), 5.3(2c), 5.3(2d), 5.3(2e), 5.3(2f), 6.1(5e), 6.2(1f), 6.2(1g) and 6.2(2e). Insufficient input validation of user-controlled command arguments in the web-based management API lets an authenticated remote attacker run arbitrary commands as root. The attacker must have valid administrative credentials.

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

Description from the CNA

A vulnerability in the web-based management API for Cisco Application Policy Infrastructure Controller (APIC) could allow an authenticated, remote attacker to execute arbitrary commands as the root user. To exploit this vulnerability, the attacker must have valid administrative credentials. This vulnerability is due to insufficient input validation of user-controlled command arguments. An attacker could exploit this vulnerability by authenticating using the API and sending crafted input. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system of an affected device with root-level privileges.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00435 37th 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: No
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)	5.3(1d); 5.3(2a); 5.3(2b); 5.3(2c); 5.3(2d); 5.3(2e); 5.3(2f); 6.1(5e); 6.2(1f); 6.2(1g); 6.2(2e)	—	No fix listed	CNA

Cisco Application Policy Infrastructure Controller (APIC) VendorCisco Affected 5.3(1d); 5.3(2a); 5.3(2b); 5.3(2c); 5.3(2d); 5.3(2e); 5.3(2f); 6.1(5e); 6.2(1f); 6.2(1g); 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-2026-20321
2026-10-07 Alias added: GHSA-r72r-fhv8-5qgq
2026-10-08 CISA SSVC decision points changed
2026-10-08 Priority changed: MEDIUM → LOW

References

Other 1

cisco-sa-apic-cmdinj-L6VR4E7

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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