CVE-2026-20321 (GCVE-0-2026-20321)
Vulnerability from cvelistv5
Published
2026-10-07 16:11
Modified
2026-10-08 15:33
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-544 - Missing Standardized Error Handling Mechanism
Summary
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.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Cisco | Cisco Application Policy Infrastructure Controller (APIC) |
Version: 5.3(1d) Version: 5.3(2a) Version: 5.3(2b) Version: 5.3(2c) Version: 5.3(2d) Version: 5.3(2e) Version: 5.3(2f) Version: 6.1(5e) Version: 6.2(1f) Version: 6.2(1g) Version: 6.2(2e) |
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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