Loading vulnerability…
CVE-2026-20316 is a use of hard-coded credentials vulnerability in the web interface of Cisco Secure Firewall Management Center (FMC) Software. A built-in low-privileged account is provisioned with static credentials, allowing an unauthenticated remote party to authenticate to an affected FMC instance and access data available to that account. Cisco rated the issue High despite its CVSS v3.1 score of 5.3 because the obtained access can be chained with other FMC vulnerabilities for privilege escalation. The vulnerability has been actively exploited.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
209 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Cisco Secure Firewall Management Center (FMC) flaw that enables attackers with a low-privilege account to access sensitive data and can be chained with other FMC vulnerabilities for privilege escalation.
Cisco Secure Firewall Management Center vulnerability that permits unauthenticated remote login through a low-privilege account and access to sensitive data; it can be chained with other FMC flaws for privilege escalation.
A CVSS 5.3 unauthenticated remote access vulnerability in Cisco Secure Firewall Management Center that enables login through a low-privilege account and access to sensitive data. It may be chained with other FMC flaws to elevate privileges.
CVSS 5.3 Cisco Secure Firewall Management Center Software vulnerability that enables remote login with a low-privileged account and can be chained with other flaws for privilege escalation.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.