CVE-2026-20321: medium-severity vulnerability in Cisco Application Policy Infrastructure…
Cisco Application Policy Infrastructure Controller API Command Injection Vulnerability
Published
10Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5
exploitation probability
—
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Affected products
Cisco · Cisco Application Policy Infrastructure Controller (APIC)Related CVEs — Cisco Application Policy Infrastructure…
In the same product, most dangerous first.
CVE-2019-1889HIGHCisco Application Policy Infrastructure Controller REST API Privilege Escalation VulnerabilityEPSS 2.8%CVE-2021-1579HIGHCisco Application Policy Infrastructure Controller App Privilege Escalation VulnerabilityEPSS 2.1%CVE-2021-1578HIGHCisco Application Policy Infrastructure Controller Privilege Escalation VulnerabilityEPSS 2.0%CVE-2021-1580MEDIUMCisco Application Policy Infrastructure Controller Command Injection and File Upload VulnerabilitiesEPSS 1.8%CVE-2021-1577CRITICALCisco Application Policy Infrastructure Controller Arbitrary File Read and Write VulnerabilityEPSS 1.3%CVE-2019-1692MEDIUMCisco Application Policy Infrastructure Controller Web-Based Management Interface Usage Information Disclosure VulnerabilityEPSS 1.2%