CVE-2026-20054 (GCVE-0-2026-20054)
Vulnerability from cvelistv5 – Published: 2026-03-04 17:47 – Updated: 2026-03-04 21:30
VLAI
EPSS
VEX
Title
Cisco Secure Firewall Threat Defense Software Snort 3 Visual Basic for Application Infinite Loop Denial of Service Vulnerability
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 error checking when decompressing VBA data. 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 the Snort 3 Detection Engine to enter an infinite loop, causing a DoS condition.
Severity
5.8 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-04 21:30 UTC
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
1 reference
Impacted products
3 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Cisco | Cisco Cyber Vision |
Affected:
3.0.0
Affected: 3.0.2 Affected: 3.0.3 Affected: 3.0.1 Affected: 3.1.0 Affected: 3.0.4 Affected: 3.1.1 Affected: 3.1.2 Affected: 3.2.0 Affected: 3.0.5 Affected: 3.2.1 Affected: 3.0.6 Affected: 3.2.2 Affected: 3.2.3 Affected: 3.2.4 Affected: 4.0.0 Affected: 4.0.1 Affected: 4.0.2 Affected: 4.0.3 Affected: 4.1.0 Affected: 4.1.1 Affected: 4.1.2 Affected: 4.1.3 Affected: 4.1.4 Affected: 4.2.0 Affected: 4.2.1 Affected: 4.1.5 Affected: 4.2.2 Affected: 4.2.X Affected: 4.2.3 Affected: 4.2.4 Affected: 4.2.6 Affected: 4.1.6 Affected: 4.3.0 Affected: 4.3.1 Affected: 4.3.2 Affected: 4.3.3 Affected: 4.4.0 Affected: 4.4.1 Affected: 4.4.2 Affected: 4.4.3 Affected: 4.1.7 Affected: 5.0.0 Affected: 5.0.1 Affected: 5.0.2 Affected: 5.1.0 Affected: 5.1.1 Affected: 5.1.2 Affected: 5.1.3 Affected: 5.2.0 Affected: 5.2.1 Affected: 5.3.0 Affected: 5.3.1 Affected: 5.3.2 |
guessed | |
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software |
Affected:
7.2.0
Affected: 7.2.0.1 Affected: 7.2.1 Affected: 7.3.0 Affected: 7.2.2 Affected: 7.2.3 Affected: 7.3.1 Affected: 7.2.4 Affected: 7.2.5 Affected: 7.2.4.1 Affected: 7.3.1.1 Affected: 7.4.0 Affected: 7.2.5.1 Affected: 7.4.1 Affected: 7.2.6 Affected: 7.4.1.1 Affected: 7.2.7 Affected: 7.2.5.2 Affected: 7.3.1.2 Affected: 7.2.8 Affected: 7.6.0 Affected: 7.4.2 Affected: 7.2.8.1 Affected: 7.4.2.1 Affected: 7.2.9 Affected: 7.7.0 Affected: 7.4.2.2 Affected: 7.2.10 Affected: 7.6.1 Affected: 7.4.2.3 Affected: 7.6.2 Affected: 7.7.10 Affected: 7.6.2.1 Affected: 7.7.10.1 Affected: 7.4.2.4 Affected: 7.2.10.2 Affected: 7.4.3 |
guessed | |
| Cisco | Cisco UTD SNORT IPS Engine Software |
Affected:
3.17.1S
Affected: 16.12.3 Affected: Fuji-16.9.5 Affected: 16.12.4 Affected: 17.3.1a Affected: 16.6.6 Affected: 16.12.2 Affected: Fuji-16.9.6 Affected: 3.17.0S Affected: Fuji-16.9.3 Affected: Denali-16.3.7 Affected: Fuji-16.9.2 Affected: Fuji-16.9.4 Affected: Everest-16.6.4 Affected: Everest-16.6.3 Affected: 16.6.5 Affected: Denali-16.3.5 Affected: 17.2.1r Affected: 17.1.1 Affected: Everest-16.6.2 Affected: 16.6.7a Affected: Denali-16.3.4 Affected: 16.6.1 Affected: Denali-16.3.9 Affected: Denali-16.3.3 Affected: 16.12.1a Affected: 17.3.2 Affected: 17.4.1a Affected: 16.12.5 Affected: 17.5.1 Affected: Fuji-16.9.7 Affected: 16.6.9 Affected: 17.3.3 Affected: 17.5.1a Affected: 17.3.4 Affected: 17.3.4a Affected: 17.4.2 Affected: 17.4.1b Affected: 17.6.1a Affected: 16.6.10 Affected: 17.7.1a Affected: 16.12.6 Affected: Fuji-16.9.8 Affected: 17.6.2 Affected: 17.8.1a Affected: 16.12.7 Affected: 17.3.5 Affected: 17.6.3 Affected: 17.6.3a Affected: 17.7.2 Affected: 17.9.1a Affected: 17.6.4 Affected: 17.10.1a Affected: 17.3.6 Affected: 16.12.8 Affected: 17.3.7 Affected: 17.9.2a Affected: 17.6.5 Affected: 17.11.1a Affected: 17.9.3a Affected: 17.12.1a Affected: 17.9.4 Affected: 17.6.6 Affected: 17.3.8 Affected: 17.3.8a Affected: 17.6.6a Affected: 17.9.4a Affected: 17.12.2 Affected: 17.13.1a Affected: 17.9.5a Affected: 17.12.3 Affected: 17.6.7 Affected: 17.14.1a Affected: 17.12.4 Affected: 17.12.3a Affected: 17.15.1a Affected: 17.6.8 Affected: 17.9.6 Affected: 17.6.8a Affected: 17.16.1a Affected: 17.9.5e Affected: 17.12.4a Affected: 17.15.2c Affected: 17.9.5f Affected: 17.12.4b Affected: 17.15.2a Affected: 17.12.5 Affected: 17.17.1 Affected: 17.12.5a Affected: 17.9.7a Affected: 17.15.3a Affected: 17.15.3 Affected: 17.12.5b Affected: 17.12.5c Affected: 17.15.4 Affected: 17.9.7b Affected: 17.18.1 Affected: 17.18.1a Affected: 17.12.6 Affected: 17.9.8 Affected: 17.15.4c Affected: 17.12.5d Affected: 17.18.2 |
guessed |
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"version": "17.16.1a"
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"version": "17.12.4a"
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"version": "17.15.2c"
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"status": "affected",
"version": "17.9.5f"
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"version": "17.12.4b"
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"version": "17.15.3a"
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"status": "affected",
"version": "17.15.3"
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"status": "affected",
"version": "17.12.5b"
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"status": "affected",
"version": "17.12.5c"
},
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"status": "affected",
"version": "17.15.4"
},
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"status": "affected",
"version": "17.9.7b"
},
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"status": "affected",
"version": "17.18.1"
},
{
"status": "affected",
"version": "17.18.1a"
},
{
"status": "affected",
"version": "17.12.6"
},
{
"status": "affected",
"version": "17.9.8"
},
{
"status": "affected",
"version": "17.15.4c"
},
{
"status": "affected",
"version": "17.12.5d"
},
{
"status": "affected",
"version": "17.18.2"
}
]
}
],
"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.\u0026nbsp;\r\n\r\nThis vulnerability is due to improper error checking when decompressing VBA data. 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 the Snort 3 Detection Engine to enter an infinite loop, causing a DoS condition."
}
],
"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."
}
],
"metrics": [
{
"cvssV3_1": {
"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"
},
"format": "cvssV3_1"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-835",
"description": "Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)",
"lang": "en",
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{
"name": "cisco-sa-ftd-snort3-vbavuls-96UcVVed",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-snort3-vbavuls-96UcVVed"
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"advisory": "cisco-sa-ftd-snort3-vbavuls-96UcVVed",
"defects": [
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"discovery": "INTERNAL"
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"title": "Cisco Secure Firewall Threat Defense Software Snort 3 Visual Basic for Application Infinite Loop Denial of Service Vulnerability"
}
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"dateReserved": "2025-10-08T11:59:15.355Z",
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Advisory\",\"Mitigation\"]}]}}",
"redhat_vex": {
"current_release_date": "2026-03-27T08:09:52+00:00",
"cve": "CVE-2026-20054",
"id": "CVE-2026-20054",
"initial_release_date": "2026-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "Cisco Secure Firewall Threat Defense Software Snort 3 Visual Basic for Application Infinite Loop Denial of Service Vulnerability",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-20054.json",
"version": "3"
},
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-20054\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-03-04T21:30:40.990992Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-03-04T21:30:47.097Z\"}}], \"cna\": {\"title\": \"Cisco Secure Firewall Threat Defense Software Snort 3 Visual Basic for Application Infinite Loop Denial of Service Vulnerability\", \"source\": {\"defects\": [\"CSCwq23372\"], \"advisory\": \"cisco-sa-ftd-snort3-vbavuls-96UcVVed\", \"discovery\": \"INTERNAL\"}, \"metrics\": [{\"format\": \"cvssV3_1\", \"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 5.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"LOW\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"Cisco\", \"product\": \"Cisco Cyber Vision\", \"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\": \"3.2.2\"}, {\"status\": \"affected\", \"version\": \"3.2.3\"}, {\"status\": \"affected\", \"version\": \"3.2.4\"}, {\"status\": \"affected\", \"version\": \"4.0.0\"}, {\"status\": \"affected\", \"version\": \"4.0.1\"}, {\"status\": \"affected\", \"version\": \"4.0.2\"}, {\"status\": \"affected\", \"version\": \"4.0.3\"}, {\"status\": \"affected\", \"version\": \"4.1.0\"}, {\"status\": \"affected\", \"version\": \"4.1.1\"}, {\"status\": \"affected\", \"version\": \"4.1.2\"}, {\"status\": \"affected\", \"version\": \"4.1.3\"}, {\"status\": \"affected\", \"version\": \"4.1.4\"}, {\"status\": \"affected\", \"version\": \"4.2.0\"}, {\"status\": \"affected\", \"version\": \"4.2.1\"}, {\"status\": \"affected\", \"version\": \"4.1.5\"}, {\"status\": \"affected\", \"version\": \"4.2.2\"}, {\"status\": \"affected\", \"version\": \"4.2.X\"}, {\"status\": \"affected\", \"version\": \"4.2.3\"}, {\"status\": \"affected\", \"version\": \"4.2.4\"}, {\"status\": \"affected\", \"version\": \"4.2.6\"}, {\"status\": \"affected\", \"version\": \"4.1.6\"}, {\"status\": \"affected\", \"version\": \"4.3.0\"}, {\"status\": \"affected\", \"version\": \"4.3.1\"}, {\"status\": \"affected\", \"version\": \"4.3.2\"}, {\"status\": \"affected\", \"version\": \"4.3.3\"}, {\"status\": \"affected\", \"version\": \"4.4.0\"}, {\"status\": \"affected\", \"version\": \"4.4.1\"}, {\"status\": \"affected\", \"version\": \"4.4.2\"}, {\"status\": \"affected\", \"version\": \"4.4.3\"}, {\"status\": \"affected\", \"version\": \"4.1.7\"}, {\"status\": \"affected\", \"version\": \"5.0.0\"}, {\"status\": \"affected\", \"version\": \"5.0.1\"}, {\"status\": \"affected\", \"version\": \"5.0.2\"}, {\"status\": \"affected\", \"version\": \"5.1.0\"}, {\"status\": \"affected\", \"version\": \"5.1.1\"}, {\"status\": \"affected\", \"version\": \"5.1.2\"}, {\"status\": \"affected\", \"version\": \"5.1.3\"}, {\"status\": \"affected\", \"version\": \"5.2.0\"}, {\"status\": \"affected\", \"version\": \"5.2.1\"}, {\"status\": \"affected\", \"version\": \"5.3.0\"}, {\"status\": \"affected\", \"version\": \"5.3.1\"}, {\"status\": \"affected\", \"version\": \"5.3.2\"}], \"defaultStatus\": \"unknown\"}, {\"vendor\": \"Cisco\", \"product\": \"Cisco Secure Firewall Threat Defense (FTD) Software\", \"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\": \"7.4.0\"}, {\"status\": \"affected\", \"version\": \"7.2.5.1\"}, {\"status\": \"affected\", \"version\": \"7.4.1\"}, {\"status\": \"affected\", \"version\": \"7.2.6\"}, {\"status\": \"affected\", \"version\": \"7.4.1.1\"}, {\"status\": \"affected\", \"version\": \"7.2.7\"}, {\"status\": \"affected\", \"version\": \"7.2.5.2\"}, {\"status\": \"affected\", \"version\": \"7.3.1.2\"}, {\"status\": \"affected\", \"version\": \"7.2.8\"}, {\"status\": \"affected\", \"version\": \"7.6.0\"}, {\"status\": \"affected\", \"version\": \"7.4.2\"}, {\"status\": \"affected\", \"version\": \"7.2.8.1\"}, {\"status\": \"affected\", \"version\": \"7.4.2.1\"}, {\"status\": \"affected\", \"version\": \"7.2.9\"}, {\"status\": \"affected\", \"version\": \"7.7.0\"}, {\"status\": \"affected\", \"version\": \"7.4.2.2\"}, {\"status\": \"affected\", \"version\": \"7.2.10\"}, {\"status\": \"affected\", \"version\": \"7.6.1\"}, {\"status\": \"affected\", \"version\": \"7.4.2.3\"}, {\"status\": \"affected\", \"version\": \"7.6.2\"}, {\"status\": \"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\": \"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\": \"affected\", \"version\": \"Fuji-16.9.2\"}, {\"status\": \"affected\", \"version\": \"Fuji-16.9.4\"}, {\"status\": \"affected\", \"version\": \"Everest-16.6.4\"}, {\"status\": \"affected\", \"version\": \"Everest-16.6.3\"}, {\"status\": \"affected\", \"version\": \"16.6.5\"}, {\"status\": \"affected\", \"version\": \"Denali-16.3.5\"}, {\"status\": \"affected\", \"version\": \"17.2.1r\"}, {\"status\": \"affected\", \"version\": \"17.1.1\"}, {\"status\": \"affected\", \"version\": \"Everest-16.6.2\"}, {\"status\": \"affected\", \"version\": \"16.6.7a\"}, {\"status\": \"affected\", \"version\": \"Denali-16.3.4\"}, {\"status\": \"affected\", \"version\": \"16.6.1\"}, {\"status\": \"affected\", \"version\": \"Denali-16.3.9\"}, {\"status\": \"affected\", \"version\": \"Denali-16.3.3\"}, {\"status\": \"affected\", \"version\": \"16.12.1a\"}, {\"status\": \"affected\", \"version\": \"17.3.2\"}, {\"status\": \"affected\", \"version\": \"17.4.1a\"}, {\"status\": \"affected\", \"version\": \"16.12.5\"}, {\"status\": \"affected\", \"version\": \"17.5.1\"}, {\"status\": \"affected\", \"version\": \"Fuji-16.9.7\"}, {\"status\": \"affected\", \"version\": \"16.6.9\"}, {\"status\": \"affected\", \"version\": \"17.3.3\"}, {\"status\": \"affected\", \"version\": \"17.5.1a\"}, {\"status\": \"affected\", \"version\": \"17.3.4\"}, {\"status\": \"affected\", \"version\": \"17.3.4a\"}, {\"status\": \"affected\", \"version\": \"17.4.2\"}, {\"status\": \"affected\", \"version\": \"17.4.1b\"}, {\"status\": \"affected\", \"version\": \"17.6.1a\"}, {\"status\": \"affected\", \"version\": \"16.6.10\"}, {\"status\": \"affected\", \"version\": \"17.7.1a\"}, {\"status\": \"affected\", \"version\": \"16.12.6\"}, {\"status\": \"affected\", \"version\": \"Fuji-16.9.8\"}, {\"status\": \"affected\", \"version\": \"17.6.2\"}, {\"status\": \"affected\", \"version\": \"17.8.1a\"}, {\"status\": \"affected\", \"version\": \"16.12.7\"}, {\"status\": \"affected\", \"version\": \"17.3.5\"}, {\"status\": \"affected\", \"version\": \"17.6.3\"}, {\"status\": \"affected\", \"version\": \"17.6.3a\"}, {\"status\": \"affected\", \"version\": \"17.7.2\"}, {\"status\": \"affected\", \"version\": \"17.9.1a\"}, {\"status\": \"affected\", \"version\": \"17.6.4\"}, {\"status\": \"affected\", \"version\": \"17.10.1a\"}, {\"status\": \"affected\", \"version\": \"17.3.6\"}, {\"status\": \"affected\", \"version\": \"16.12.8\"}, {\"status\": \"affected\", \"version\": \"17.3.7\"}, {\"status\": \"affected\", \"version\": \"17.9.2a\"}, {\"status\": \"affected\", \"version\": \"17.6.5\"}, {\"status\": \"affected\", \"version\": \"17.11.1a\"}, {\"status\": \"affected\", \"version\": \"17.9.3a\"}, {\"status\": \"affected\", \"version\": \"17.12.1a\"}, {\"status\": \"affected\", \"version\": \"17.9.4\"}, {\"status\": \"affected\", \"version\": \"17.6.6\"}, {\"status\": \"affected\", \"version\": \"17.3.8\"}, {\"status\": \"affected\", \"version\": \"17.3.8a\"}, {\"status\": \"affected\", \"version\": \"17.6.6a\"}, {\"status\": \"affected\", \"version\": \"17.9.4a\"}, {\"status\": \"affected\", \"version\": \"17.12.2\"}, {\"status\": \"affected\", \"version\": \"17.13.1a\"}, {\"status\": \"affected\", \"version\": \"17.9.5a\"}, {\"status\": \"affected\", \"version\": \"17.12.3\"}, {\"status\": \"affected\", \"version\": \"17.6.7\"}, {\"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\": \"17.6.8\"}, {\"status\": \"affected\", \"version\": \"17.9.6\"}, {\"status\": \"affected\", \"version\": \"17.6.8a\"}, {\"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\": \"17.9.5f\"}, {\"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\": \"17.9.7a\"}, {\"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\": \"17.9.7b\"}, {\"status\": \"affected\", \"version\": \"17.18.1\"}, {\"status\": \"affected\", \"version\": \"17.18.1a\"}, {\"status\": \"affected\", \"version\": \"17.12.6\"}, {\"status\": \"affected\", \"version\": \"17.9.8\"}, {\"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.\u0026nbsp;\\r\\n\\r\\nThis vulnerability is due to improper error checking when decompressing VBA data. 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 the Snort 3 Detection Engine to enter an infinite loop, causing a DoS condition.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"cwe\", \"cweId\": \"CWE-835\", \"description\": \"Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2026-03-04T17:47:05.854Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-20054\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-03-04T21:30:54.724Z\", \"dateReserved\": \"2025-10-08T11:59:15.355Z\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2026-03-04T17:47:05.854Z\", \"assignerShortName\": \"cisco\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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