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CVE-2026-20027

Multiple Cisco products are affected by a vulnerability in the processing of DCE/RPC requests that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to leak sensitive information or to restart, resulting in an interruption of packet inspection. This vulnerability is due to an error in buffer handling logic when processing DCE/RPC requests, which can result in a buffer out-of-bounds read. An attacker could exploit this vulnerability by sending a large number
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:222687b99deb41ae555f452775d913c06579f853e63cf34847f01243b756f45f
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unknown","product":"Cisco Secure Firewall Threat Defense (FTD) Software","vendor":"Cisco","versions":[{"status":"affected","version":"7.0.0"},{"status":"affected","version":"7.0.0.1"},{"status":"affected","version":"7.0.1"},{"status":"affected","version":"7.1.0"},{"status":"affected","version":"7.0.1.1"},{"status":"affected","version":"7.1.0.1"},{"status":"affected","version":"7.0.2"},{"status":"affected","version":"7.2.0"},{"status":"affected","version":"7.0.2.1"},{"status":"affected","version":"7.0.3"},{"status":"affected","version":"7.1.0.2"},{"status":"affected","version"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e4055e861d4af12663998aaacc1acb8d6140ec6b8805816e260cb7afd508cb6a · sha256:d560e37b296279ee… · /containers/cna/affected/0

{"defaultStatus":"unknown","product":"Cisco UTD SNORT IPS Engine Software","vendor":"Cisco","versions":[{"status":"affected","version":"3.17.1S"},{"status":"affected","version":"16.12.3"},{"status":"affected","version":"Fuji-16.9.5"},{"status":"affected","version":"16.12.4"},{"status":"affected","version":"17.3.1a"},{"status":"affected","version":"16.6.6"},{"status":"affected","version":"16.12.2"},{"status":"affected","version":"Fuji-16.9.6"},{"status":"affected","version":"3.17.0S"},{"status":"affected","version":"Fuji-16.9.3"},{"status":"affected","version":"Denali-16.3.7"},{"status":"affect…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e4055e861d4af12663998aaacc1acb8d6140ec6b8805816e260cb7afd508cb6a · sha256:d560e37b296279ee… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unknown","product":"Cisco Secure Firewall Threat Defense (FTD) Software","vendor":"Cisco","versions":[{"status":"affected","version":"7.0.0"},{"status":"affected","version":"7.0.0.1"},{"status":"affected","version":"7.0.1"},{"status":"affected","version":"7.1.0"},{"status":"affected","version":"7.0.1.1"},{"status":"affected","version":"7.1.0.1"},{"status":"affected","version":"7.0.2"},{"status":"affected","version":"7.2.0"},{"status":"affected","version":"7.0.2.1"},{"status":"affected","version":"7.0.3"},{"status":"affected","version":"7.1.0.2"},{"status":"affected","version"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e4055e861d4af12663998aaacc1acb8d6140ec6b8805816e260cb7afd508cb6a · sha256:d560e37b296279ee… · /containers/cna/affected/0
{"defaultStatus":"unknown","product":"Cisco UTD SNORT IPS Engine Software","vendor":"Cisco","versions":[{"status":"affected","version":"3.17.1S"},{"status":"affected","version":"16.12.3"},{"status":"affected","version":"Fuji-16.9.5"},{"status":"affected","version":"16.12.4"},{"status":"affected","version":"17.3.1a"},{"status":"affected","version":"16.6.6"},{"status":"affected","version":"16.12.2"},{"status":"affected","version":"Fuji-16.9.6"},{"status":"affected","version":"3.17.0S"},{"status":"affected","version":"Fuji-16.9.3"},{"status":"affected","version":"Denali-16.3.7"},{"status":"affect…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:e4055e861d4af12663998aaacc1acb8d6140ec6b8805816e260cb7afd508cb6a · sha256:d560e37b296279ee… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:e4055e861d4af12663998aaacc1acb8d6140ec6b8805816e260cb7afd508cb6a · sha256:d560e37b296279ee… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-200","description":"Exposure of Sensitive Information to an Unauthorized Actor","lang":"en","type":"cwe"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:e4055e861d4af12663998aaacc1acb8d6140ec6b8805816e260cb7afd508cb6a · sha256:d560e37b296279ee… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"cisco-sa-snort3-dcerpc-vulns-J9HNF4tH","url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort3-dcerpc-vulns-J9HNF4tH"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:e4055e861d4af12663998aaacc1acb8d6140ec6b8805816e260cb7afd508cb6a · sha256:d560e37b296279ee… · /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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