network-security-snort

Snort IDS/IPS Deployment Lab A full-cycle deployment of Snort 3 as both an Intrusion Detection System passive monitoring and an Intrusion Prevention System active blocking via iptables, validated against four attack vectors across a three-machine virtual network on Kali Linux. The lab proves the...

snort3

Snort++ Snort 3 is the next generation Snort IPS Intrusion Prevention System. This file will show you what Snort++ has to offer and guide you through the steps from download to demo. If you are unfamiliar with Snort you should take a look at the Snort documentation first. We will cover the...

Vulnerabilities in Snort 3 of Cisco

Cisco has addressed several vulnerabilities in Snort 3, the open-source intrusion detection and prevention system used in various Cisco products. These vulnerabilities reside in various components of the Snort 3 Detection Engine, including the SMTP MIME Decoder, NetFlow Detection Engine, GRE...

CVE-2026-76524

A vulnerability in the control channel socket implementation of Open Source Snort 3 could allow an authenticated, local attacker with low privileges to execute arbitrary commands as the Snort 3 process user. This vulnerability is due to a lack of authentication when a local user connects to the...

CVE-2026-76489

Multiple Cisco products are affected by a vulnerability in the memory management implementation of Snort 3 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...

CVE-2026-76445

Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the detection engine to unexpectedly restart, resulting in a denial of service DoS condition. The vulnerability is due to a flaw in logic handling...

CVE-2026-20291

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered...

CVE-2026-20356

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered...

CVE-2026-20236

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered...

CVE-2026-20043

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered...

CVE-2026-20218

A vulnerability in the Snort 3 Visual Basic for Applications VBA Decompression Engine of multiple Cisco products could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart unexpectedly, resulting in a denial of service DoS condition. This vulnerability is due...

CVE-2026-20221

Multiple Cisco products are affected by a vulnerability in the generic routing encapsulation GRE tunnel decapsulation feature of the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause an unexpected restart of the Snort 3 Detection Engine. This vulnerability is...

CVE-2026-20179

Multiple Cisco products are affected by a vulnerability in the Snort 3 Generic Routing Encapsulation GRE 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...

CVE-2026-20197

Multiple Cisco products are affected by a vulnerability in the Snort 3 Teredo 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 incomplete error...

CVE-2026-20019

Multiple Cisco products are affected by a vulnerability in the Snort 3 NetFlow 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 incomplete error...

CVE-2026-20011

Multiple Cisco products are affected by a vulnerability in the Snort 3 SMTP MIME Decoder that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart. This vulnerability is due to a lack of error checking when the MIME fields of the SMTP header are parsed...

EUVD-2026-107358

A vulnerability in the control channel socket implementation of Open Source Snort 3 could allow an authenticated, local attacker with low privileges to execute arbitrary commands as the Snort 3 process user. This vulnerability is due to a lack of authentication when a local user connects to the...

CVE-2026-76524

A vulnerability in the Open Source Snort 3 control channel socket implementation allows an authenticated, local attacker with low privileges to achieve arbitrary command execution . The root cause is a lack of authentication when a local user connects to the Snort control channel socket. Successf...

CVE-2026-76524 Open Source Snort 3 Control Channel Socket Aribitrary Command Execution Vulnerability

A vulnerability in the control channel socket implementation of Open Source Snort 3 could allow an authenticated, local attacker with low privileges to execute arbitrary commands as the Snort 3 process user. This vulnerability is due to a lack of authentication when a local user connects to the...

CVE-2026-76489 Multiple Cisco Products Snort 3 Generic File Processing Memory Exhaustion Denial of Service Vulnerability

Multiple Cisco products are affected by a vulnerability in the memory management implementation of Snort 3 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...