CVE-2026-20316Medium· 5.3▾ Midnight⚠ Exploited in the wild0dayPoC availableA 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…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 29.2 · likelihood 2.2 · exploitation 25 · ransomware 5
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Aug 1.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Federal remediation due Aug 1, 2026
0.8%
0.8% → 11%
Exploit / PoC code exists
Last analysed / modified upstream
Added to the CISA catalog on Jul 29, 2026. Federal remediation due Aug 1, 2026. View catalog ↗
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.
secure_firewall_management_center >= 7.0.0, <= 7.0.9secure_firewall_management_center >= 7.2.0, <= 7.2.11secure_firewall_management_center >= 7.3.0, <= 7.3.1.2secure_firewall_management_center >= 7.4.0, <= 7.4.7secure_firewall_management_center >= 7.6.0, <= 7.6.5secure_firewall_management_center >= 7.7.0, <= 7.7.12secure_firewall_management_center >= 10.0.0, <= 10.0.1Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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