CVE-2025-20218
MEDIUMDescription
A vulnerability in the web-based management interface of Cisco Secure Firewall Management Center (FMC) Software could allow an authenticated, remote attacker to retrieve sensitive information from an affected device. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted request to the web-based management interface of an affected device. A successful exploit could allow the attacker to retrieve sensitive information from the affected device. To exploit this vulnerability, the attacker must have valid administrative credentials.
How to fix
No published remediation has been found for this vulnerability's affected products yet.
Mitigation guidance may be in the linked vendor advisories in the References section below.
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CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Exploit Intelligence
Low risk: more likely to be exploited than 37% of all known CVEs.
References
Related Vulnerabilities
Other CWE-643 vulnerabilities, ordered by exploit likelihood. View all
| CVE | Severity | CVSS | EPSS | Exploited | Fix |
|---|---|---|---|---|---|
| CVE-2023-36429 | Medium | 6.5 | 2.0% | - | Fix |
| CVE-2023-36433 | Medium | 6.5 | 1.9% | - | Fix |
| CVE-2020-25162 | High | 7.5 | 1.8% | - | - |
| CVE-2023-24922 | Medium | 6.5 | 1.5% | - | Fix |
| CVE-2024-2648 | Medium | 4.3 | 0.7% | - | - |
| CVE-2024-2645 | Medium | 4.3 | 0.7% | - | - |
Common questions
How do I fix CVE-2025-20218?
No published fix for CVE-2025-20218 has been found yet. Check the linked vendor advisories for guidance as it becomes available.
Is CVE-2025-20218 being actively exploited?
Not that we know of. CVE-2025-20218 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.45% is the estimated probability that it will be exploited in the next 30 days. That is higher than 37% of all scored CVEs.
How severe is CVE-2025-20218?
CVE-2025-20218 has a CVSS v3 base score of 4.9, rated medium. 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.
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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 2025-08-25.