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CVE-2026-20057

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

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Cisco / Cisco Cyber Visionaffected 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
Cisco / Cisco Secure Firewall Threat Defense (FTD) Softwareaffected 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
Cisco / Cisco UTD SNORT IPS Engine Softwareaffected 17.12.1a; affected 17.12.2; affected 17.13.1a; affected 17.12.3; affected 17.14.1a; affected 17.12.4; affected 17.12.3a; affected 17.15.1a; affected 17.16.1a; affected 17.12.4a; affected 17.15.2c; affected 17.12.4b; affected 17.15.2a; affected 17.12.5; affected 17.17.1; affected 17.12.5a; affected 17.15.3a; affected 17.15.3; affected 17.12.5b; affected 17.12.5c; affected 17.15.4; affected 17.18.1; affected 17.18.1a; affected 17.12.6; affected 17.15.4c; affected 17.12.5d; affected 17.18.2

CWE

CWE-369

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.