CVE Explorer
CVE-2026-20007
A vulnerability in the Snort 2 and Snort 3 deep packet inspection of Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass configured Snort rules and allow traffic onto the network that should have been dropped.
This vulnerability is due to a logic error in the integration of the Snort Engine rules with Cisco Secure FTD Software that could allow different Snort rules to be hit when deep inspection of the packet is performed for the inner
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unknown","product":"Cisco Secure Firewall Threat Defense (FTD) Software","vendor":"Cisco","versions":[{"status":"affected","version":"6.4.0.1"},{"status":"affected","version":"6.4.0.2"},{"status":"affected","version":"6.4.0.5"},{"status":"affected","version":"6.4.0"},{"status":"affected","version":"6.4.0.3"},{"status":"affected","version":"6.4.0.4"},{"status":"affected","version":"6.4.0.6"},{"status":"affected","version":"6.4.0.7"},{"status":"affected","version":"6.4.0.8"},{"status":"affected","version":"6.4.0.9"},{"status":"affected","version":"6.4.0.10"},{"status":"affected…
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:f378eb551bb9e79ecc6988a6b2db782a1d7715f42a224472672d6ad7d755573c · sha256:77fb74acf842f8d5… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.8,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:f378eb551bb9e79ecc6988a6b2db782a1d7715f42a224472672d6ad7d755573c · sha256:77fb74acf842f8d5… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-284","description":"Improper Access Control","lang":"en","type":"cwe"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:f378eb551bb9e79ecc6988a6b2db782a1d7715f42a224472672d6ad7d755573c · sha256:77fb74acf842f8d5… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"cisco-sa-ftd-snort-bypass-rLggKzVF","url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-snort-bypass-rLggKzVF"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f378eb551bb9e79ecc6988a6b2db782a1d7715f42a224472672d6ad7d755573c · sha256:77fb74acf842f8d5… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.