Is CVE-2025-20148 being actively exploited?

CVE-2025-20148 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2025-20148?

CVE-2025-20148 has a CVSS 3.1 base score of 8.5 (HIGH).

CVE-2025-20148

HIGH · CVSS 8.5EPSS 0.5%EU EUVD

A vulnerability in the web-based management interface of Cisco Secure Firewall Management Center (FMC) Software could allow an authenticated, remote attacker to inject arbitrary HTML content into a device-generated document. This vulnerability is due to improper validation of user-supplied data. An attacker could exploit this vulnerability by submitting malicious content to an affected device and using the device to generate a document that contains sensitive information. A successful exploit could allow the attacker to alter the standard layout of the device-generated documents, read arbitrary files from the underlying operating system, and conduct server-side request forgery (SSRF) attacks. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of Security Analyst (Read Only).

Key facts

CVSS score: 8.5 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Weakness (CWE): CWE-20
EPSS score: 0.5% (38th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2025-24851)
Published: August 14, 2025
NVD last modified: June 17, 2026
Status: Analyzed

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2025-24851 in the EU Vulnerability Database. Last updated in EUVD on August 14, 2025.

View on the EU Vulnerability Database

Affected products

cisco / secure firewall management center
cisco / secure firewall management center
cisco / secure firewall management center
cisco / secure firewall management center
cisco / secure firewall management center
cisco / secure firewall management center
cisco / secure firewall management center
cisco / secure firewall management center
cisco / secure firewall management center
cisco / secure firewall management center
cisco / secure firewall management center
cisco / secure firewall management center
cisco / secure firewall management center
cisco / secure firewall management center
cisco / secure firewall management center
cisco / secure firewall management center
cisco / secure firewall management center
cisco / secure firewall management center
cisco / secure firewall management center

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

Cisco Secure Firewall Threat Defense (FTD) 7.4 with Secure Firewall Management Center (FMC) 7.4 and Secure Client 5.1 - Cisco Systems, Inc. - Common Criteria NSCIB-CC-2400046-01-CR - active

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-html-inj-MqjrZrny(Vendor Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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