- Medium 5.3
- Known exploited (CISA KEV)
- Used in ransomware (CISA)
CVE-2026-20316
A vulnerability in the web interface of Cisco Secure Firewall Management Center (FMC) Software could allow an unauthenticated, remote attacker to log in to an affected device using a low-privileged account to access sensitive data within the impacted systems. This vulnerability is due to the presence of static user credentials for a low-privileged account. An attacker could exploit this vulnerability by using the account to log in to an affected system. A successful exploit could allow the attacker to log in to the affected system and access sensitive data as the low-privileged user.&nbs…
Scores
The facts
- Published
- 29 July 2026
- Last changed
- 16 September 2026
- NVD status
- Analyzed
- Severity
- Medium, CVSS 5.3 out of 10 (version 3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- Affects
- cisco secure firewall management center
- Known exploited
- Yes. CISA added it to the Known Exploited Vulnerabilities catalogue on 29 July 2026. CISA lists it as used in ransomware campaigns.
- EPSS
- 35.1% chance of exploitation activity in the next 30 days (percentile 98).
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