Loading vulnerability…
CVE-2026-20007 is a vulnerability in the Snort 2 and Snort 3 deep packet inspection functionality of Cisco Secure Firewall Threat Defense (FTD) Software that can allow an unauthenticated remote attacker to bypass configured Snort rules. The issue is caused by a logic error in the integration between the Snort engine rule processing and Cisco Secure FTD, where different Snort rules may be matched during deep inspection of the inner and outer connections. By sending crafted traffic to a targeted device, an attacker can trigger this rule-handling inconsistency and cause traffic that should have been blocked under the configured inspection policy to be permitted.
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.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
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.