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CVE Vulnerability Details :
CVE-2026-20058
PUBLISHED
More InfoOfficial Page
Assigner-cisco
Assigner Org ID-d1c1063e-7a18-46af-9102-31f8928bc633
View Known Exploited Vulnerability (KEV) details
Published At-04 Mar, 2026 | 17:47
Updated At-04 Mar, 2026 | 21:01
Rejected At-
▼CVE Numbering Authority (CNA)
Cisco Secure Firewall Threat Defense Software Snort 3 Visual Basic for Application Denial of Service Vulnerability

Multiple Cisco products are affected by vulnerabilities in the Snort 3 VBA feature that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash. These vulnerabilities are due to improper error checking when decompressing VBA data. An attacker could exploit these vulnerabilities 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 unexpectedly restart, causing a DoS condition.

Affected Products
Vendor
Cisco Systems, Inc.Cisco
Product
Cisco Secure Firewall Threat Defense (FTD) Software
Default Status
unknown
Versions
Affected
  • 7.2.0
  • 7.2.0.1
  • 7.2.1
  • 7.3.0
  • 7.2.2
  • 7.2.3
  • 7.3.1
  • 7.2.4
  • 7.2.5
  • 7.2.4.1
  • 7.3.1.1
  • 7.4.0
  • 7.2.5.1
  • 7.4.1
  • 7.2.6
  • 7.4.1.1
  • 7.2.7
  • 7.2.5.2
  • 7.3.1.2
  • 7.2.8
  • 7.6.0
  • 7.4.2
  • 7.2.8.1
  • 7.4.2.1
  • 7.2.9
  • 7.7.0
  • 7.4.2.2
  • 7.2.10
  • 7.6.1
  • 7.4.2.3
  • 7.6.2
  • 7.7.10
  • 7.6.2.1
  • 7.7.10.1
  • 7.4.2.4
  • 7.2.10.2
  • 7.4.3
Vendor
Cisco Systems, Inc.Cisco
Product
Cisco UTD SNORT IPS Engine Software
Default Status
unknown
Versions
Affected
  • 17.9.3a
  • 17.12.1a
  • 17.12.2
  • 17.13.1a
  • 17.9.5a
  • 17.12.3
  • 17.14.1a
  • 17.12.4
  • 17.12.3a
  • 17.15.1a
  • 17.9.6
  • 17.16.1a
  • 17.12.4a
  • 17.15.2c
  • 17.12.4b
  • 17.15.2a
  • 17.12.5
  • 17.17.1
  • 17.12.5a
  • 17.15.3a
  • 17.15.3
  • 17.12.5b
  • 17.12.5c
  • 17.15.4
  • 17.18.1
  • 17.18.1a
  • 17.12.6
  • 17.15.4c
  • 17.12.5d
  • 17.18.2
Problem Types
TypeCWE IDDescription
cweCWE-786Access of Memory Location Before Start of Buffer
Type: cwe
CWE ID: CWE-786
Description: Access of Memory Location Before Start of Buffer
Metrics
VersionBase scoreBase severityVector
3.15.8MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
Version: 3.1
Base score: 5.8
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-snort3-vbavuls-96UcVVed
N/A
Hyperlink: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-snort3-vbavuls-96UcVVed
Resource: N/A
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
Details not found