CVE Explorer
CVE-2026-20006
A vulnerability in the TLS cryptography functionality of the Snort 3 Detection Engine of Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to unexpectedly restart, resulting in a denial of service (DoS) condition.
This vulnerability is due to improper implementation of the TLS protocol. An attacker could exploit this vulnerability by sending a crafted TLS packet to an affected system. A successful exploit
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":"7.2.0"},{"status":"affected","version":"7.2.0.1"},{"status":"affected","version":"7.2.1"},{"status":"affected","version":"7.3.0"},{"status":"affected","version":"7.2.2"},{"status":"affected","version":"7.2.3"},{"status":"affected","version":"7.3.1"},{"status":"affected","version":"7.2.4"},{"status":"affected","version":"7.2.5"},{"status":"affected","version":"7.2.4.1"},{"status":"affected","version":"7.3.1.1"},{"status":"affected","version":"7.…
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:82c7f8a3a5917515139bdedc3838040acd48ac16e1ce4c896fdbfa41c5acfcb2 · sha256:accd30d8cb7cc5db… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.8,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:82c7f8a3a5917515139bdedc3838040acd48ac16e1ce4c896fdbfa41c5acfcb2 · sha256:accd30d8cb7cc5db… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-388","description":"Error Handling","lang":"en","type":"cwe"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:82c7f8a3a5917515139bdedc3838040acd48ac16e1ce4c896fdbfa41c5acfcb2 · sha256:accd30d8cb7cc5db… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"cisco-sa-ftd-tcp-dos-rHfqnwRg","url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-tcp-dos-rHfqnwRg"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:82c7f8a3a5917515139bdedc3838040acd48ac16e1ce4c896fdbfa41c5acfcb2 · sha256:accd30d8cb7cc5db… · /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.