Cisco Application Policy Infrastructure Controller up to 6.1(3g) Object Model CLI insufficient granularity of access control

Summaryinfo

A vulnerability marked as problematic has been reported in Cisco Application Policy Infrastructure Controller 6.1(1f)/6.1(2f)/6.1(2g)/6.1(3f)/6.1(3g). Affected by this issue is some unknown functionality of the component Object Model CLI. Performing a manipulation results in insufficient granularity of access control. This vulnerability is cataloged as CVE-2026-20107. The attack must be initiated from a local position. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Cisco Application Policy Infrastructure Controller 6.1(1f)/6.1(2f)/6.1(2g)/6.1(3f)/6.1(3g). This affects an unknown code of the component Object Model CLI. The manipulation with an unknown input leads to a insufficient granularity of access control vulnerability. CWE is classifying the issue as CWE-1220. The product implements access controls via a policy or other feature with the intention to disable or restrict accesses (reads and/or writes) to assets in a system from untrusted agents. However, implemented access controls lack required granularity, which renders the control policy too broad because it allows accesses from unauthorized agents to the security-sensitive assets. This is going to have an impact on availability. The summary by CVE is:

A vulnerability in the Object Model CLI component of Cisco Application Policy Infrastructure Controller (APIC) could allow an authenticated, local attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. To exploit this vulnerability, the attacker must have valid user credentials and any role that includes CLI access. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by issuing crafted commands at the CLI prompt. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.

It is possible to read the advisory at sec.cloudapps.cisco.com. This vulnerability is uniquely identified as CVE-2026-20107 since 10/08/2025. The exploitability is told to be easy. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

• Cisco

Name

• Application Policy Infrastructure Controller

Version

• 6.1(1f)
• 6.1(2f)
• 6.1(2g)
• 6.1(3f)
• 6.1(3g)

License

• commercial

Website

• Vendor: https://www.cisco.com/

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