CVE-2026-20067

Cisco reports CVE-2026-20067 affects multiple products running the Snort 3 detection engine. The root cause is incomplete error checking when parsing Multicast DNS fields of the HTTP header, exploitable by an unauthenticated, remote attacker sending crafted HTTP packets over the network. Successf...

CVE-2026-20066 Multiple Cisco Products Snort 3 TBD Denial of Service Vulnerability

Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to an error in the JSTokenize...

CVE-2026-20066

CVE-2026-20066 affects multiple Cisco products using the Snort 3 Detection Engine. The issue stems from JSTokenizer normalization logic during HTTP inspection of JavaScript, allowing an unauthenticated remote attacker to trigger a DoS by causing the Snort 3 engine to restart, interrupting packet ...

CVE-2026-20066 Multiple Cisco Products Snort 3 TBD Denial of Service Vulnerability

Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to an error in the JSTokenize...

CVE-2026-20066

Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to an error in the JSTokenize...

CVE-2026-20065

Technical details (affected products, components, root cause, impact, remediation) are not publicly provided in the supplied documents. Monitor for updates from Cisco and authoritative advisories to obtain concrete technical information.

CVE-2026-20065

Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to an error in the binder...

CVE-2026-20065 Multiple Cisco Products Snort 3 TBD Denial of Service Vulnerability

Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to an error in the binder...

CVE-2026-20065 Multiple Cisco Products Snort 3 TBD Denial of Service Vulnerability

Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to an error in the binder...

CVE-2026-20058

CVE-2026-20058 affects Cisco products featuring the Snort 3 VBA capability. The issue stems from improper error checking when decompressing VBA data in the Snort 3 Detection Engine, which could allow an unauthenticated, remote attacker to send crafted VBA data over the network and cause the Detec...

CVE-2026-20058 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...

CVE-2026-20058 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...

CVE-2026-20057

CVE-2026-20057 affects multiple Cisco products via the Snort 3 VBA feature. The issue stems from lack of proper error checking when decompressing VBA data, enabling an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to crash and restart, resulting in a DoS (availability imp...

CVE-2026-20057 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...

CVE-2026-20057 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...

CVE-2026-20057

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...

CVE-2026-20054

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...

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...

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...

CVE-2026-20054

Cisco CVE-2026-20054 affects Snort 3 VBA feature. The vulnerability stems from improper error checking when decompressing VBA data, allowing an unauthenticated attacker to send crafted VBA to the Snort 3 Detection Engine and force an infinite loop, resulting in DoS. CVSS‑3.1 metrics: AV:N/AC:L/PR...