CVE-2026-20107
mediumpriority · track · 0EPSS 0.001 · 1 %ileDEEUUSEPSS · scored 2026-10-27
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.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- Fixed6.1(1f)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed6.1(2f)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed6.1(2g)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed6.1(3f)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - Fixed6.1(3g)cisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (12)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-0519Cisco Application Policy Infrastructure Controller: Schwachstelle ermöglicht Denial of ServiceDeutsch2026-02-25csaf · cert_bundDE
Ein lokaler Angreifer kann eine Schwachstelle in Cisco Application Policy Infrastructure Controller ausnutzen, um einen Denial of Service Angriff durchzuführen.
- cisco-sa-apic-dos-rNus8EFwCisco Application Policy Infrastructure Controller Denial of Service Vulnerability2026-02-25csaf · cisco_csafUS
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. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (4)
External citations — patches, advisories, analysis.
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apic-dos-rNus8EFwcnnvd
- https://www.cisco.com/Patchcnnvd
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apic-dos-rNus8EFwenisa_euvd
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apic-dos-rNus8EFwnvd
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