CVE-2026-20053 (GCVE-0-2026-20053)
Vulnerability from cvelistv5
Published
2026-03-04 17:46
Modified
2026-03-04 21:25
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-122 - Heap-based Buffer Overflow
Summary
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 data, which could cause a DoS condition.
References
Impacted products
| Vendor | Product | Version | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cisco | Cisco Cyber Vision |
Version: 3.0.0 Version: 3.0.2 Version: 3.0.3 Version: 3.0.1 Version: 3.1.0 Version: 3.0.4 Version: 3.1.1 Version: 3.1.2 Version: 3.2.0 Version: 3.0.5 Version: 3.2.1 Version: 3.0.6 Version: 3.2.2 Version: 3.2.3 Version: 3.2.4 Version: 4.0.0 Version: 4.0.1 Version: 4.0.2 Version: 4.0.3 Version: 4.1.0 Version: 4.1.1 Version: 4.1.2 Version: 4.1.3 Version: 4.1.4 Version: 4.2.0 Version: 4.2.1 Version: 4.1.5 Version: 4.2.2 Version: 4.2.X Version: 4.2.3 Version: 4.2.4 Version: 4.2.6 Version: 4.1.6 Version: 4.3.0 Version: 4.3.1 Version: 4.3.2 Version: 4.3.3 Version: 4.4.0 Version: 4.4.1 Version: 4.4.2 Version: 4.4.3 Version: 4.1.7 Version: 5.0.0 Version: 5.0.1 Version: 5.0.2 Version: 5.1.0 Version: 5.1.1 Version: 5.1.2 Version: 5.1.3 Version: 5.2.0 Version: 5.2.1 Version: 5.3.0 Version: 5.3.1 Version: 5.3.2 |
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|
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\"affected\", \"version\": \"7.7.10\"}, {\"status\": \"affected\", \"version\": \"7.6.2.1\"}, {\"status\": \"affected\", \"version\": \"7.7.10.1\"}, {\"status\": \"affected\", \"version\": \"7.4.2.4\"}, {\"status\": \"affected\", \"version\": \"7.2.10.2\"}, {\"status\": \"affected\", \"version\": \"7.4.3\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Cisco\", \"product\": \"Cisco UTD SNORT IPS Engine Software\", \"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\": \"17.12.4a\"}, {\"status\": \"affected\", \"version\": \"17.15.2c\"}, {\"status\": \"affected\", \"version\": \"17.12.4b\"}, {\"status\": \"affected\", \"version\": \"17.15.2a\"}, {\"status\": \"affected\", \"version\": \"17.12.5\"}, {\"status\": \"affected\", \"version\": \"17.17.1\"}, {\"status\": \"affected\", \"version\": \"17.12.5a\"}, {\"status\": \"affected\", \"version\": \"17.15.3a\"}, {\"status\": \"affected\", \"version\": \"17.15.3\"}, {\"status\": \"affected\", \"version\": \"17.12.5b\"}, {\"status\": \"affected\", \"version\": \"17.12.5c\"}, {\"status\": \"affected\", \"version\": \"17.15.4\"}, {\"status\": \"affected\", \"version\": \"17.18.1\"}, {\"status\": \"affected\", \"version\": \"17.18.1a\"}, {\"status\": \"affected\", \"version\": \"17.12.6\"}, {\"status\": \"affected\", \"version\": \"17.15.4c\"}, {\"status\": \"affected\", \"version\": \"17.12.5d\"}, {\"status\": \"affected\", \"version\": \"17.18.2\"}], \"defaultStatus\": \"unknown\"}], \"exploits\": [{\"lang\": \"en\", \"value\": \"The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.\"}], \"references\": [{\"url\": \"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-snort3-vbavuls-96UcVVed\", \"name\": \"cisco-sa-ftd-snort3-vbavuls-96UcVVed\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"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.\\r\\n\\r\\nThis 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 data, which could cause a DoS condition.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"cwe\", \"cweId\": \"CWE-122\", \"description\": \"Heap-based Buffer Overflow\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2026-03-04T17:46:58.213Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-20053\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-03-04T21:25:01.489Z\", \"dateReserved\": \"2025-10-08T11:59:15.355Z\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2026-03-04T17:46:58.213Z\", \"assignerShortName\": \"cisco\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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