CVE-2026-20023

A vulnerability in the OSPF protocol of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, adjacent attacker to corrupt memory on an affected device, resulting in a denial of service DoS condition...

CVE-2026-20023

A vulnerability in the OSPF protocol of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, adjacent attacker to corrupt memory on an affected device, resulting in a denial of service DoS condition...

CVE-2026-20022

A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition when OSPF canonicalization debug is enabled by using the...

CVE-2026-20020

A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition. If OSPF authentication is enabled, the attacker must know th...

CVE-2026-20020

A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an unauthenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition. If OSPF authentication is enabled, the attacker must know th...

Cisco Secure Firewall Adaptive Security Appliance和Cisco Secure Firewall Threat Defense 输入验证错误漏洞

Cisco Secure Firewall Adaptive Security Appliance and Cisco Secure Firewall Threat Defense are products of Cisco, a US company. Cisco Secure Firewall Adaptive Security Appliance is an enterprise-level firewall software. Cisco Secure Firewall Threat Defense is an integrated firewall platform. Both...

PT-2026-23037

Name of the Vulnerable Software and Affected Versions Cisco Secure Firewall ASA Software and Cisco Secure FTD Software affected versions not specified Description A flaw exists in the OSPF protocol that may allow a nearby attacker to cause an unexpected reload of a device, leading to a denial of...

PT-2026-23041

Name of the Vulnerable Software and Affected Versions Cisco Secure Firewall ASA Software and Cisco Secure FTD Software affected versions not specified Description A flaw exists in the OSPF protocol that may allow an attacker with the OSPF secret key, who is adjacent to an affected device, to caus...

PT-2026-23040

Name of the Vulnerable Software and Affected Versions Cisco Secure Firewall Adaptive Security Appliance ASA Software and Cisco Secure Firewall Threat Defense FTD Software affected versions not specified Description A flaw exists in the OSPF protocol implementation of the software that could allow...

CVE-2013-7309

The OSPF implementation in Extreme Networks EXOS does not consider the possibility of duplicate Link State ID values in Link State Advertisement LSA packets before performing operations on the LSA database, which allows remote attackers to cause a denial of service routing disruption or obtain...

CVE-2013-7310

The OSPF implementation on Yamaha routers does not consider the possibility of duplicate Link State ID values in Link State Advertisement LSA packets before performing operations on the LSA database, which allows remote attackers to cause a denial of service routing disruption or obtain sensitive...

CVE-2013-7306

The OSPF implementation on Brocade routers does not consider the possibility of duplicate Link State ID values in Link State Advertisement LSA packets before performing operations on the LSA database, which allows remote attackers to cause a denial of service routing disruption or obtain sensitiv...

CVE-2025-8872

This CVE affects Arista EOS with OSPFv3 configured. A specially crafted IPv6 OSPFv3 packet can cause the ospfv3 process to have high CPU utilization, potentially restarting the process and disrupting OSPFv3 routes. The Arista advisory lists affected EOS trains: 4.34.x (4.34.1F and below), 4.33.x ...

Security Advisory 0128

Security Advisory 0128 PDF Date: December 16, 2025 Revision | Date | Changes ---|---|--- 1.0 | December 16, 2025 | Initial release The CVE-ID tracking this issue: CVE-2025-8872 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H 6.5 / 10 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N 7....

TencentOS Server 4: frr (TSSA-2025:0853)

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2025:0853 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities...

FRRouting/frr from v2.0 through v10.4.1 was discovered to contain a NULL pointer dereference via the ospf_opaque_lsa_dump function at ospf_opaque.c. This vulnerability allows attackers to cause a Denial of Service (DoS) under specific malformed LSA conditions.

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FRRouting/frr from v4.0 through v10.4.1 was discovered to contain a NULL pointer dereference via the show_vty_ext_link_rmt_itf_addr function at ospf_ext.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted OSPF packet.

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FRRouting/frr from v4.0 through v10.4.1 was discovered to contain a NULL pointer dereference via the show_vty_ext_link_adj_sid function at ospf_ext.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted OSPF packet.

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FRRouting/frr from v4.0 through v10.4.1 was discovered to contain a NULL pointer dereference via the show_vty_ext_pref_pref_sid function at ospf_ext.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted LSA Update packet.

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FRRouting Denial of Service Vulnerability (CNVD-2026-10883)

FRRouting is FRRouting open source a network routing software suite running on a Unix-like platform . FRRouting suffers from a denial of service vulnerability caused by NULL pointer dereference via the showvtyextprefprefsid function on ospfext.c. An attacker could exploit this vulnerability to...