ipdecap

ipdecap Decapsulate traffic encapsulated within GRE, IPIP, 6in4 and ESP ipsec protocols, from a pcap file. Can also remove IEEE 802.1Q virtual lan - vlan header. Documentation available at http://loicpefferkorn.net/ipdecap...

CVE-2023-42326

pfSense 2.7.0 Command Injection Exploit CVE-2023-42326 This Python script is a Proof-of-Concept PoC exploit for the command injection vulnerability CVE-2023-42326 in pfSense 2.7.0. The vulnerability allows authenticated attackers to inject and execute arbitrary commands via the...

ipeeyoupeewepee

ipeeyoupeewepee A scanner and attack suite for hosts on the public internet mostly Cisco routers that forward unauthenticated packets encapsulated in the IP-in-IP and GRE protocols. This vulnerability, known as "Insecure Implementation of Tunneling Protocols," is tracked under CVE-2020-10136 and...

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-2026-20221

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...

EUVD-2026-107378

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-2026-20221

Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine 's generic routing encapsulation (GRE) tunnel decapsulation feature. The root cause is the improper handling of nested GRE traffic , which allows an unauthenticated, remote attacker to send a crafted GRE paylo...

CVE-2026-20221 Multiple Cisco Products Snort 3 Generic Routing Encapsulation Denial of Service Vulnerabilities

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-2026-20221 Multiple Cisco Products Snort 3 Generic Routing Encapsulation Denial of Service Vulnerabilities

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...

EUVD-2026-107373

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-2026-20179

Multiple Cisco products are impacted by a vulnerability in the Snort 3 Generic Routing Encapsulation (GRE) Detection Engine . The root cause is incomplete error checking during the parsing of GRE packets. An unauthenticated, remote attacker can exploit this by sending a crafted GRE packet to a ta...

CVE-2026-20179 Multiple Cisco Products Snort 3 Generic Routing Encapsulation Denial of Service Vulnerabilities

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-2026-20179 Multiple Cisco Products Snort 3 Generic Routing Encapsulation Denial of Service Vulnerabilities

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...

Multiple Cisco Products Snort 3 Generic Routing Encapsulation Denial of Service Vulnerability

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...

PT-2026-120685

Name of the Vulnerable Software and Affected Versions Cisco products affected versions not specified Description A flaw exists in the generic routing encapsulation GRE tunnel decapsulation feature of the Snort 3 Detection Engine. The issue stems from improper handling of nested GRE traffic, which...

Multiple Cisco Products Snort 3 Generic Routing Encapsulation DoS (cisco-sa-snort3-gre-JNpMHrTv)

According to its self-reported version, Cisco ASA Software is affected by a vulnerability. - 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...

Multiple Cisco Products Snort 3 DoS Vulnerabilities (cisco-sa-snort3-misc-dos-6mB22qAK_CVE-2026-20019_CVE-2026-20179_CVE-2026-20197)

According to its self-reported version, Cisco ASA Software is affected by multiple vulnerabilities. - 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...

PT-2026-120682

Name of the Vulnerable Software and Affected Versions Cisco products affected versions not specified Description A flaw exists in the Snort 3 Generic Routing Encapsulation GRE Detection Engine due to incomplete error checking during the parsing of GRE packets. An unauthenticated remote attacker c...

CVE-2026-89562

A flaw was found in the Linux kernel's IPv6 Generic Routing Encapsulation GRE subsystem. The kernel incorrectly calculates the hardware header length for Non-Broadcast Multiple Access NBMA tunnel interfaces by improperly accumulating the underlying device's header length. A local authenticated...

CVE-2026-98569

A flaw was found in the Linux kernel's Generic Routing Encapsulation GRE subsystem. A local user with network administration privileges could cause a Denial of Service DoS by enabling metadata collection on an existing GRE network device through a netlink interface modification request. Because t...