Cisco Secure Firewall Management Center Software Static Credential Vulnerability
Affects Cisco Secure Firewall Management Center software regardless of device configuration. CVSS scores it 5.3 (medium), and no fixed release is listed in the checked facts.
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Listed in CISA KEV
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Actively exploited
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Cisco Secure Firewall Management Center (FMC) Software is affected by this vulnerability, which stems from a hardcoded low-privileged account in its web interface. An unauthenticated remote attacker could use that account to log in and access sensitive data on the affected system.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
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. Note: If the FMC management interface does not have public internet access, the attack surface that is associated with this vulnerability is reduced. Cisco has assigned this security advisory a Security Impact Rating (SIR) of High rather than Medium as the score indicates. The reason is that this vulnerability can be used with other Cisco Secure FMC Software vulnerabilities to elevate privileges.
Timeline
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- CVE published
- CISA remediation deadline
Due date for US federal agencies to patch
- Record last updated
- EPSS reached 10%
FIRST estimates at least a 10% chance of exploitation in the next 30 days
Affected versions
- Cisco Cisco Secure Firewall Management Center (FMC)
7.0.0, 7.0.0.1, 7.0.1, 7.0.1.1, 7.0.2, 7.2.0, 7.0.2.1, 7.0.3, 7.2.0.1, 7.0.4, 7.2.1, 7.0.5, 7.3.0, 7.2.2, 7.3.1, 7.2.3, 7.2.3.1, 7.2.4, 7.0.6, 7.2.4.1, 7.2.5, 7.3.1.1, 7.4.0, 7.0.6.1, 7.2.5.1, 7.4.1, 7.2.6, 7.4.1.1, 7.0.6.2, 7.2.7, and 38 more
References 1
sec.cloudapps.cisco.com
Questions about CVE-2026-20316
What does this mean?
The software contains static credentials, so an attacker can log in with a fixed low-privileged account. From that login, the attacker can access sensitive data available to that low-privileged user.Source: sec.cloudapps.cisco.com
Am I affected, and how do I check?
Cisco Secure FMC Software is affected regardless of device configuration. The specific affected releases are listed in the Fixed Software section of Cisco's advisory, and the checked facts do not include them. Compare the installed software version against that list.Source: sec.cloudapps.cisco.com
What should I do about it?
The checked facts do not name an upgrade target. Check the Fixed Software section of Cisco's advisory for the releases that address this issue.Source: sec.cloudapps.cisco.com
Is it being exploited?
Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2026-07-29, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data
What if there's no patch?
The checked facts do not list a workaround. Until a fix is available, follow Cisco's advisory for any mitigation it provides.Source: sec.cloudapps.cisco.com