5.8

CVE-2026-20054

Cisco Secure Firewall Threat Defense Software Snort 3 Visual Basic for Application Infinite Loop Denial of Service Vulnerability

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerCisco
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Produkt Cisco Cyber Vision
Default Statusunknown
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
Status affected
HerstellerCisco
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Produkt Cisco Secure Firewall Threat Defense (FTD) Software
Default Statusunknown
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
Status affected
HerstellerCisco
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Produkt Cisco UTD SNORT IPS Engine Software
Default Statusunknown
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
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Version 17.13.1a
Status affected
Version 17.9.5a
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Version 17.12.3
Status affected
Version 17.6.7
Status affected
Version 17.14.1a
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Version 17.12.4
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Version 17.12.3a
Status affected
Version 17.15.1a
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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
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Version 17.15.2c
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Version 17.9.5f
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Version 17.12.4b
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Version 17.15.2a
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Version 17.12.5
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Version 17.17.1
Status affected
Version 17.12.5a
Status affected
Version 17.9.7a
Status affected
Version 17.15.3a
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Version 17.15.3
Status affected
Version 17.12.5b
Status affected
Version 17.12.5c
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Version 17.15.4
Status affected
Version 17.9.7b
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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
Status affected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.04% 0.129
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
psirt@cisco.com 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-835 Loop with Unreachable Exit Condition ('Infinite Loop')

The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.