5.8

CVE-2026-20057

EPSS 0.43%
Veröffentlicht 04.03.2026 17:47:07
Zuletzt bearbeitet 20.08.2026 15:10:19
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Cisco Secure Firewall Threat Defense Software Snort 3 Visual Basic for Application Denial of Service Vulnerability

Multiple Cisco products are affected by a vulnerability in the Snort 3 Visual Basic for Applications (VBA) feature which could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash. 
 
This vulnerability is due to lack of proper error checking when decompressing VBA data. An attacker could exploit this vulnerability by sending a 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 unexpectedly restart causing a a denial of service (DoS) condition.

Betroffene Produkte Warnungen 0 Metriken 2 CWE 1 Referenzen 4

NVD 117 VulnDex Vulnerability Enrichment 1

Daten sind bereitgestellt durch National Vulnerability Database (NVD)

Cisco ≫ Snort Version >= 3.0.0-233 < 3.9.3.0

Cisco ≫ Cyber Vision Version 3.0.0

Cisco ≫ Cyber Vision Version 3.0.1

Cisco ≫ Cyber Vision Version 3.0.2

Cisco ≫ Cyber Vision Version 3.0.3

Cisco ≫ Cyber Vision Version 3.0.4

Cisco ≫ Cyber Vision Version 3.0.5

Cisco ≫ Cyber Vision Version 3.0.6

Cisco ≫ Cyber Vision Version 3.1.0

Cisco ≫ Cyber Vision Version 3.1.1

Cisco ≫ Cyber Vision Version 3.1.2

Cisco ≫ Cyber Vision Version 3.2.0

Cisco ≫ Cyber Vision Version 3.2.1

Cisco ≫ Cyber Vision Version 3.2.2

Cisco ≫ Cyber Vision Version 3.2.3

Cisco ≫ Cyber Vision Version 3.2.4

Cisco ≫ Cyber Vision Version 4.0.0

Cisco ≫ Cyber Vision Version 4.0.1

Cisco ≫ Cyber Vision Version 4.0.2

Cisco ≫ Cyber Vision Version 4.0.3

Cisco ≫ Cyber Vision Version 4.1.0

Cisco ≫ Cyber Vision Version 4.1.1

Cisco ≫ Cyber Vision Version 4.1.2

Cisco ≫ Cyber Vision Version 4.1.3

Cisco ≫ Cyber Vision Version 4.1.4

Cisco ≫ Cyber Vision Version 4.1.5

Cisco ≫ Cyber Vision Version 4.1.6

Cisco ≫ Cyber Vision Version 4.1.7

Cisco ≫ Cyber Vision Version 4.2.0

Cisco ≫ Cyber Vision Version 4.2.1

Cisco ≫ Cyber Vision Version 4.2.2

Cisco ≫ Cyber Vision Version 4.2.3

Cisco ≫ Cyber Vision Version 4.2.4

Cisco ≫ Cyber Vision Version 4.2.6

Cisco ≫ Cyber Vision Version 4.3.0

Cisco ≫ Cyber Vision Version 4.3.1

Cisco ≫ Cyber Vision Version 4.3.2

Cisco ≫ Cyber Vision Version 4.3.3

Cisco ≫ Cyber Vision Version 4.4.0

Cisco ≫ Cyber Vision Version 4.4.1

Cisco ≫ Cyber Vision Version 4.4.2

Cisco ≫ Cyber Vision Version 4.4.3

Cisco ≫ Cyber Vision Version 5.0.0

Cisco ≫ Cyber Vision Version 5.0.1

Cisco ≫ Cyber Vision Version 5.0.2

Cisco ≫ Cyber Vision Version 5.1.0

Cisco ≫ Cyber Vision Version 5.1.1

Cisco ≫ Cyber Vision Version 5.1.2

Cisco ≫ Cyber Vision Version 5.1.3

Cisco ≫ Cyber Vision Version 5.2.0

Cisco ≫ Cyber Vision Version 5.2.1

Cisco ≫ Cyber Vision Version 5.3.0

Cisco ≫ Cyber Vision Version 5.3.1

Cisco ≫ Secure Firewall Threat Defense Version 7.2.0

Cisco ≫ Secure Firewall Threat Defense Version 7.2.0.1

Cisco ≫ Secure Firewall Threat Defense Version 7.2.1

Cisco ≫ Secure Firewall Threat Defense Version 7.2.2

Cisco ≫ Secure Firewall Threat Defense Version 7.2.3

Cisco ≫ Secure Firewall Threat Defense Version 7.2.4

Cisco ≫ Secure Firewall Threat Defense Version 7.2.4.1

Cisco ≫ Secure Firewall Threat Defense Version 7.2.5

Cisco ≫ Secure Firewall Threat Defense Version 7.2.5.1

Cisco ≫ Secure Firewall Threat Defense Version 7.2.5.2

Cisco ≫ Secure Firewall Threat Defense Version 7.2.6

Cisco ≫ Secure Firewall Threat Defense Version 7.2.7

Cisco ≫ Secure Firewall Threat Defense Version 7.2.8

Cisco ≫ Secure Firewall Threat Defense Version 7.2.8.1

Cisco ≫ Secure Firewall Threat Defense Version 7.2.9

Cisco ≫ Secure Firewall Threat Defense Version 7.2.10

Cisco ≫ Secure Firewall Threat Defense Version 7.2.10.2

Cisco ≫ Secure Firewall Threat Defense Version 7.3.0

Cisco ≫ Secure Firewall Threat Defense Version 7.3.1

Cisco ≫ Secure Firewall Threat Defense Version 7.3.1.1

Cisco ≫ Secure Firewall Threat Defense Version 7.3.1.2

Cisco ≫ Secure Firewall Threat Defense Version 7.4.0

Cisco ≫ Secure Firewall Threat Defense Version 7.4.1

Cisco ≫ Secure Firewall Threat Defense Version 7.4.1.1

Cisco ≫ Secure Firewall Threat Defense Version 7.4.2

Cisco ≫ Secure Firewall Threat Defense Version 7.4.2.1

Cisco ≫ Secure Firewall Threat Defense Version 7.4.2.2

Cisco ≫ Secure Firewall Threat Defense Version 7.4.2.3

Cisco ≫ Secure Firewall Threat Defense Version 7.4.2.4

Cisco ≫ Secure Firewall Threat Defense Version 7.4.3

Cisco ≫ Secure Firewall Threat Defense Version 7.6.0

Cisco ≫ Secure Firewall Threat Defense Version 7.6.1

Cisco ≫ Secure Firewall Threat Defense Version 7.6.2

Cisco ≫ Secure Firewall Threat Defense Version 7.6.2.1

Cisco ≫ Secure Firewall Threat Defense Version 7.7.0

Cisco ≫ Secure Firewall Threat Defense Version 7.7.10

Cisco ≫ Secure Firewall Threat Defense Version 7.7.10.1

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.12.1a

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.12.2

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.12.3

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.12.3a

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.12.4

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.12.4a

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.12.4b

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.12.5

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.12.5a

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.12.5b

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.12.5c

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.12.5d

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.12.6

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.13.1a

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.14.1a

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.15.1a

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.15.2a

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.15.2c

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.15.3

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.15.3a

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.15.4

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.15.4c

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.16.1a

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.17.1

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.18.1

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.18.1a

Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version 17.18.2

VulnDex Vulnerability Enrichment

Diese Information steht angemeldeten Benutzern zur Verfügung.

Zu dieser CVE wurde keine Warnung gefunden.

EPSS Metriken
Typ	Quelle	Score	Percentile
EPSS	FIRST.org	0.43%	0.344

CVSS Metriken
Quelle	Base Score	Exploit Score	Impact Score	Vector String
Cisco PSIRT	5.8	3.9	1.4	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L

CWE-369 Divide By Zero

The product divides a value by zero.

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-snort3-vbavuls-96UcVVed

Vendor Advisory

Mitigation

https://nvd.nist.gov/vuln/detail/CVE-2026-20057

CVE Source (NVD)

https://cveawg.mitre.org/api/cve/CVE-2026-20057

CVE Source (JSON)

https://euvd.enisa.europa.eu/vulnerability/CVE-2026-20057

EUVD