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CVE-2026-20005

Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to incomplete parsing of the SSL handshake ingress packets. An attacker could exploit this vulnerability by sending crafted SSL handshake packets. A successful exploit could allow the attacker to cause a denial of service (DoS) c
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8cb7932c0fe7889034880f13ef03a26483d7cdcb4bdea6b24b3bc1ed18486ca1
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 3 assertions

{"product":"Cisco Secure Firewall Threat Defense (FTD) Software","vendor":"Cisco","versions":[{"status":"affected","version":"7.6.0"},{"status":"affected","version":"7.6.1"},{"status":"affected","version":"7.6.2"},{"status":"affected","version":"7.6.2.1"},{"status":"affected","version":"7.7.0"},{"status":"affected","version":"7.7.10"},{"status":"affected","version":"7.7.10.1"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ae98e382f691656a678259bbe63ff864bf8e359fc9b6f84681766ba7d4fcfc07 · sha256:95f1e4d63143fdc0… · /containers/cna/affected/0

{"product":"Cisco UTD SNORT IPS Engine Software","vendor":"Cisco","versions":[{"status":"affected","version":"17.2.1r"},{"status":"affected","version":"17.3.1a"},{"status":"affected","version":"17.3.2"},{"status":"affected","version":"17.3.3"},{"status":"affected","version":"17.3.4a"},{"status":"affected","version":"17.3.6"},{"status":"affected","version":"17.3.5"},{"status":"affected","version":"17.3.7"},{"status":"affected","version":"17.3.8"},{"status":"affected","version":"17.4.1a"},{"status":"affected","version":"17.4.2"},{"status":"affected","version":"17.4.1b"},{"status":"affected","ver…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ae98e382f691656a678259bbe63ff864bf8e359fc9b6f84681766ba7d4fcfc07 · sha256:95f1e4d63143fdc0… · /containers/cna/affected/2

{"product":"Cisco Cyber Vision","vendor":"Cisco","versions":[{"status":"affected","version":"3.0.4"},{"status":"affected","version":"3.0.0"},{"status":"affected","version":"3.0.1"},{"status":"affected","version":"3.0.2"},{"status":"affected","version":"3.0.3"},{"status":"affected","version":"3.0.5"},{"status":"affected","version":"3.0.6"},{"status":"affected","version":"3.1.0"},{"status":"affected","version":"3.1.2"},{"status":"affected","version":"3.1.1"},{"status":"affected","version":"3.2.3"},{"status":"affected","version":"3.2.1"},{"status":"affected","version":"3.2.4"},{"status":"affected…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ae98e382f691656a678259bbe63ff864bf8e359fc9b6f84681766ba7d4fcfc07 · sha256:95f1e4d63143fdc0… · /containers/cna/affected/1

Affected products and versions

3 source assertions
{"product":"Cisco Secure Firewall Threat Defense (FTD) Software","vendor":"Cisco","versions":[{"status":"affected","version":"7.6.0"},{"status":"affected","version":"7.6.1"},{"status":"affected","version":"7.6.2"},{"status":"affected","version":"7.6.2.1"},{"status":"affected","version":"7.7.0"},{"status":"affected","version":"7.7.10"},{"status":"affected","version":"7.7.10.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ae98e382f691656a678259bbe63ff864bf8e359fc9b6f84681766ba7d4fcfc07 · sha256:95f1e4d63143fdc0… · /containers/cna/affected/0
{"product":"Cisco UTD SNORT IPS Engine Software","vendor":"Cisco","versions":[{"status":"affected","version":"17.2.1r"},{"status":"affected","version":"17.3.1a"},{"status":"affected","version":"17.3.2"},{"status":"affected","version":"17.3.3"},{"status":"affected","version":"17.3.4a"},{"status":"affected","version":"17.3.6"},{"status":"affected","version":"17.3.5"},{"status":"affected","version":"17.3.7"},{"status":"affected","version":"17.3.8"},{"status":"affected","version":"17.4.1a"},{"status":"affected","version":"17.4.2"},{"status":"affected","version":"17.4.1b"},{"status":"affected","ver…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ae98e382f691656a678259bbe63ff864bf8e359fc9b6f84681766ba7d4fcfc07 · sha256:95f1e4d63143fdc0… · /containers/cna/affected/2
{"product":"Cisco Cyber Vision","vendor":"Cisco","versions":[{"status":"affected","version":"3.0.4"},{"status":"affected","version":"3.0.0"},{"status":"affected","version":"3.0.1"},{"status":"affected","version":"3.0.2"},{"status":"affected","version":"3.0.3"},{"status":"affected","version":"3.0.5"},{"status":"affected","version":"3.0.6"},{"status":"affected","version":"3.1.0"},{"status":"affected","version":"3.1.2"},{"status":"affected","version":"3.1.1"},{"status":"affected","version":"3.2.3"},{"status":"affected","version":"3.2.1"},{"status":"affected","version":"3.2.4"},{"status":"affected…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ae98e382f691656a678259bbe63ff864bf8e359fc9b6f84681766ba7d4fcfc07 · sha256:95f1e4d63143fdc0… · /containers/cna/affected/1

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_v5cvss
    urn:baitaphish:normalized-source-record:v2:ae98e382f691656a678259bbe63ff864bf8e359fc9b6f84681766ba7d4fcfc07 · sha256:95f1e4d63143fdc0… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-392","description":"Missing Report of Error Condition","lang":"en","type":"cwe"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:ae98e382f691656a678259bbe63ff864bf8e359fc9b6f84681766ba7d4fcfc07 · sha256:95f1e4d63143fdc0… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"cisco-sa-snort3-multi-dos-XFWkWSwz","url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort3-multi-dos-XFWkWSwz"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ae98e382f691656a678259bbe63ff864bf8e359fc9b6f84681766ba7d4fcfc07 · sha256:95f1e4d63143fdc0… · /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.

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