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CVE-2026-20053

Multiple Cisco products are affected by a vulnerability in the Snort 3 VBA feature that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash. This vulnerability is due to improper range checking when decompressing VBA data, which is user controlled. An attacker could exploit this vulnerability by sending crafted VBA data to the Snort 3 Detection Engine on the targeted device. A successful exploit could allow the attacker to cause an overflow of heap d
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:1ec41656b49c63058f83311824507608caee4610d605cebbcfd6baa93eead949
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

{"defaultStatus":"unknown","product":"Cisco UTD SNORT IPS Engine Software","vendor":"Cisco","versions":[{"status":"affected","version":"17.12.1a"},{"status":"affected","version":"17.9.4"},{"status":"affected","version":"17.12.2"},{"status":"affected","version":"17.13.1a"},{"status":"affected","version":"17.12.3"},{"status":"affected","version":"17.14.1a"},{"status":"affected","version":"17.12.4"},{"status":"affected","version":"17.12.3a"},{"status":"affected","version":"17.15.1a"},{"status":"affected","version":"17.16.1a"},{"status":"affected","version":"17.9.5e"},{"status":"affected","version…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:287c1d8b799753d2889904b7d904f21b6c8b4a39d386f437690671fa97ce93bf · sha256:7b046a377f9b26a3… · /containers/cna/affected/2

{"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_v5affected
    urn:baitaphish:normalized-source-record:v2:287c1d8b799753d2889904b7d904f21b6c8b4a39d386f437690671fa97ce93bf · sha256:7b046a377f9b26a3… · /containers/cna/affected/1

{"defaultStatus":"unknown","product":"Cisco Cyber Vision","vendor":"Cisco","versions":[{"status":"affected","version":"3.0.0"},{"status":"affected","version":"3.0.2"},{"status":"affected","version":"3.0.3"},{"status":"affected","version":"3.0.1"},{"status":"affected","version":"3.1.0"},{"status":"affected","version":"3.0.4"},{"status":"affected","version":"3.1.1"},{"status":"affected","version":"3.1.2"},{"status":"affected","version":"3.2.0"},{"status":"affected","version":"3.0.5"},{"status":"affected","version":"3.2.1"},{"status":"affected","version":"3.0.6"},{"status":"affected","version":"3…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:287c1d8b799753d2889904b7d904f21b6c8b4a39d386f437690671fa97ce93bf · sha256:7b046a377f9b26a3… · /containers/cna/affected/0

Affected products and versions

3 source assertions
{"defaultStatus":"unknown","product":"Cisco UTD SNORT IPS Engine Software","vendor":"Cisco","versions":[{"status":"affected","version":"17.12.1a"},{"status":"affected","version":"17.9.4"},{"status":"affected","version":"17.12.2"},{"status":"affected","version":"17.13.1a"},{"status":"affected","version":"17.12.3"},{"status":"affected","version":"17.14.1a"},{"status":"affected","version":"17.12.4"},{"status":"affected","version":"17.12.3a"},{"status":"affected","version":"17.15.1a"},{"status":"affected","version":"17.16.1a"},{"status":"affected","version":"17.9.5e"},{"status":"affected","version…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:287c1d8b799753d2889904b7d904f21b6c8b4a39d386f437690671fa97ce93bf · sha256:7b046a377f9b26a3… · /containers/cna/affected/2
{"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_v5affected
    urn:baitaphish:normalized-source-record:v2:287c1d8b799753d2889904b7d904f21b6c8b4a39d386f437690671fa97ce93bf · sha256:7b046a377f9b26a3… · /containers/cna/affected/1
{"defaultStatus":"unknown","product":"Cisco Cyber Vision","vendor":"Cisco","versions":[{"status":"affected","version":"3.0.0"},{"status":"affected","version":"3.0.2"},{"status":"affected","version":"3.0.3"},{"status":"affected","version":"3.0.1"},{"status":"affected","version":"3.1.0"},{"status":"affected","version":"3.0.4"},{"status":"affected","version":"3.1.1"},{"status":"affected","version":"3.1.2"},{"status":"affected","version":"3.2.0"},{"status":"affected","version":"3.0.5"},{"status":"affected","version":"3.2.1"},{"status":"affected","version":"3.0.6"},{"status":"affected","version":"3…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:287c1d8b799753d2889904b7d904f21b6c8b4a39d386f437690671fa97ce93bf · sha256:7b046a377f9b26a3… · /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_v5cvss
    urn:baitaphish:normalized-source-record:v2:287c1d8b799753d2889904b7d904f21b6c8b4a39d386f437690671fa97ce93bf · sha256:7b046a377f9b26a3… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-122","description":"Heap-based Buffer Overflow","lang":"en","type":"cwe"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:287c1d8b799753d2889904b7d904f21b6c8b4a39d386f437690671fa97ce93bf · sha256:7b046a377f9b26a3… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"cisco-sa-ftd-snort3-vbavuls-96UcVVed","url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-snort3-vbavuls-96UcVVed"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:287c1d8b799753d2889904b7d904f21b6c8b4a39d386f437690671fa97ce93bf · sha256:7b046a377f9b26a3… · /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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