CVE-2025-20156
CRITICALDescription
A vulnerability in the REST API of Cisco Meeting Management could allow a remote, authenticated attacker with low privileges to elevate privileges to administrator on an affected device. This vulnerability exists because proper authorization is not enforced upon REST API users. An attacker could exploit this vulnerability by sending API requests to a specific endpoint. A successful exploit could allow the attacker to gain administrator-level control over edge nodes that are managed by Cisco Meeting Management.
How to fix
TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works
Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Exploit Intelligence
Moderate risk: more likely to be exploited than 66% of all known CVEs.
References
Related Vulnerabilities
Other CWE-274 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2021-35534 | High | 7.2 | 1.7% | - | - |
| CVE-2023-35928 | High | 8.4 | 1.0% | - | Fix |
| CVE-2022-45101 | High | 7.3 | 0.8% | - | Fix |
| CVE-2021-32006 | Medium | 5.0 | 0.6% | - | - |
| CVE-2022-0668 | Medium | 5.3 | 0.6% | - | Fix |
| CVE-2023-39375 | High | 7.5 | 0.6% | - | Fix |
Common questions
How do I fix CVE-2025-20156?
Upgrade meeting management to 3.9.1 or later.
Is CVE-2025-20156 being actively exploited?
Not that we know of. CVE-2025-20156 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 1.2% is the estimated probability that it will be exploited in the next 30 days. That is higher than 66% of all scored CVEs.
How severe is CVE-2025-20156?
CVE-2025-20156 has a CVSS v3 base score of 9.9, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.
What does CVE-2025-20156 affect?
Published advisories record a fix for meeting management (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.
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Markdown
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-08-01.