CVE-2022-20921
CVE-2022-20921 is a high-severity vulnerability in Cisco Aci Multi-site Orchestrator with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-285.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- EPSS exploit prediction: 1% (59th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-285
- Affected product: Cisco Aci Multi-site Orchestrator
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2022-20921?
- 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.
- How severe is CVE-2022-20921?
- CVE-2022-20921 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2022-20921 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-20921?
- CVE-2022-20921 affects Cisco Aci Multi-site Orchestrator. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2022-20921?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2022-20921 published?
- CVE-2022-20921 was published on 2022-08-25 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:cisco:aci_multi-site_orchestrator:*:*:*:*:*:*:*:*
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