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-2026-20179 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...

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 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 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-2011-3283

Cisco Carrier Routing System 3.9.1 allows remote attackers to cause a denial of service Metro subsystem crash via a fragmented GRE packet, aka Bug ID CSCts14887...

Code injection

Cisco Carrier Routing System 3.9.1 allows remote attackers to cause a denial of service Metro subsystem crash via a fragmented GRE packet, aka Bug ID CSCts14887...

CVE-2011-3283

Cisco Carrier Routing System 3.9.1 allows remote attackers to cause a denial of service Metro subsystem crash via a fragmented GRE packet, aka Bug ID CSCts14887...

PT-2012-1681

Name of the Vulnerable Software and Affected Versions Cisco Carrier Routing System version 3.9.1 Description The issue allows remote attackers to cause a denial of service, resulting in a Metro subsystem crash. This can be achieved by sending a fragmented GRE packet. Recommendations For Cisco...

CVE-2011-3283: Improper Input Validation

Cisco Carrier Routing System 3.9.1 allows remote attackers to cause a denial of service Metro subsystem crash via a fragmented GRE packet, aka Bug ID CSCts14887...

Debian: Security Advisory (DSA-1288-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2008 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

DSA-1288-2 pptpd - regression

Bulletin has no description...

Debian DSA-1288-1 : pptpd - programming error

It was discovered that the PoPToP Point to Point Tunneling Server contains a programming error, which allows the tear-down of a PPTP connection through a malformed GRE packet, resulting in denial of service. The oldstable distribution sarge is not affected by this problem. %NASLMINLEVEL 70300 C...

DSA-1288-1 pptpd

Bulletin has no description...

CVE-2005-1278

The isisprint function, as called by isoclnsprint, in tcpdump 3.9.1 and earlier allows remote attackers to cause a denial of service infinite loop via a zero length, as demonstrated using a GRE packet...

CVE-2005-1278

The isisprint function, as called by isoclnsprint, in tcpdump 3.9.1 and earlier allows remote attackers to cause a denial of service infinite loop via a zero length, as demonstrated using a GRE packet...

CVE-2005-1278

The isisprint function, as called by isoclnsprint, in tcpdump 3.9.1 and earlier allows remote attackers to cause a denial of service infinite loop via a zero length, as demonstrated using a GRE packet...

CVE-2005-1278

The isisprint function, as called by isoclnsprint, in tcpdump 3.9.1 and earlier allows remote attackers to cause a denial of service infinite loop via a zero length, as demonstrated using a GRE packet...

CVE-2005-1278: Undefined Security Weakness

The isisprint function, as called by isoclnsprint, in tcpdump 3.9.1 and earlier allows remote attackers to cause a denial of service infinite loop via a zero length, as demonstrated using a GRE packet...