CVE detail
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. 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.
Buzz score
Why this CVE is surfacing
This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.
Buzz score components · mention 17.9 · diversity 20.0 · KEV 25.0 · OTX 0.0 · PoC 0.0
Why it matters now
Mention timeline
- Total mentions
- 7
- within the 30d window
- Peak daily
- 5
- highest bucket
Evidence
Source links by recency
7 source links · newest first
- Cisco Secure FMC Zero-Day Exploited in the WildSecurityWeek
The vulnerability tracked as CVE-2026-20316 can be exploited by a remote, unauthenticated attacker to log into affected devices. The post Cisco Secure FMC Zero-Day Exploited in the Wild appeared first on SecurityWeek .
newswww.securityweek.comJul 30, 2026, 6:31 AM - Cisco FMC Zero-Day Actively Exploited, Static Credentials Could Expose Sensitive DataThe Hacker News
Known Exploited Vulnerabilities (KEV) catalog, following reports of zero-day exploitation. The vulnerability, assigned CVE-2026-20316 (CVSS score: 5.3), could permit an unauthenticated, remote attacker to log
newsthehackernews.comJul 30, 2026, 5:08 AM sco is warning that a high-severity Secure Firewall Management Center (FMC) static credential vulnerability, tracked as CVE-2026-20316, was actively exploited in zero-day attacks to gain unauthorized access to vulnerable devices. [...]
newswww.bleepingcomputer.comJul 29, 2026, 9:35 PMNo excerpt available.
Mitigationwww.cisa.govJul 29, 2026, 5:16 PM- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-static-cred-BET3Cjhsec.cloudapps.cisco.com
No excerpt available.
Vendor Advisorysec.cloudapps.cisco.comJul 29, 2026, 5:16 PM - Cisco Secure Firewall Management Center Software Static Credential VulnerabilityCisco Security Advisories
co.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-static-cred-BET3Cjh Security Impact Rating: High CVE: CVE-2026-20316
vendorsec.cloudapps.cisco.comJul 29, 2026, 4:00 PM one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2026-20316 Cisco Secure Firewall Management Center Use of Hard-coded Password Vulnerability This type of vulnerability is a frequent attack vector for malicious cyber actors and poses significant risks to the federal enterprise. B
governmentwww.cisa.govJul 29, 2026, 12:00 PM
Exploit code
Public exploit repository references
Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.
0 repository references · best confidence N/A · max 0 stars
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