CVE-2022-20921: Cisco ACI Multi-Site Orchestrator Privilege Escalation Vulnerability

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-08-25 · updated 2026-06-17
Weakness: CWE-285

Description

A vulnerability in the API implementation of Cisco ACI Multi-Site Orchestrator (MSO) could allow an authenticated, remote attacker to elevate privileges on an affected device. This vulnerability is due to improper authorization on specific APIs. An attacker could exploit this vulnerability by sending crafted HTTP requests. A successful exploit could allow an attacker who is authenticated with non-Administrator privileges to elevate to Administrator privileges on an affected device.

Affected products

Cisco ACI Multi-Site Orchestrator Software: before 3.1\(1n\) — fixed in 3.1\(1n\)

How to fix

Upgrade to a fixed version: Cisco ACI Multi-Site Orchestrator Software 3.1\(1n\). Check the vendor advisory for mitigations.

References

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