CVE-2026-20083

CVE-2026-20083 describes a DoS vulnerability in the SCP server feature of Cisco IOS XE. An authenticated, low-privilege local attacker can trigger a reload via a crafted SCP command issued over SSH due to improper handling of a malformed request. The practical impact is a device DoS from unexpect...

CVE-2026-20125

CVE-2026-20125 affects the HTTP Server feature in Cisco IOS Software and Cisco IOS XE Software Release 3E . The root cause is improper validation of user-supplied input, which can be exploited by sending malformed HTTP requests to an affected device. A successful exploit would cause the device to...

CVE-2026-20012

The CVE-2026-20012 entry describes a memory-leak DoS in the IKEv2 handling of Cisco IOS, IOS XE, ASA, and FTDS (Threat Defense). Root cause: improper parsing of IKEv2 packets leading to conditions where devices reload (IOS/IOS XE) or exhaust memory to the point of instability (ASA/FTD). Affected ...

Cisco IOS Software and IOS XE Software Release 3E HTTP Server Denial of Service Vulnerability

A vulnerability in the HTTP Server feature of Cisco IOS Software and Cisco IOS XE Software Release 3E could allow an authenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service DoS condition. This vulnerability is due to improper validation ...

CVE-2026-20025

A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an authenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition. To exploit this vulnerability, the attacker must have the OSPF...

CVE-2026-20050

A vulnerability in the Do Not Decrypt exclusion feature of the SSL decryption feature of Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability is due to improper memory...

CVE-2026-20024

A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an authenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition. To exploit this vulnerability, the attacker must have the OSPF...

CVE-2026-20015

A vulnerability in the IKEv2 feature of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device that may impact the availability of services to devices elsewhere in the network. This...

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-2026-20101

A vulnerability in the SAML 2.0 single sign-on SSO feature of Cisco Secure Firewall ASA Software and Secure FTD Software could allow an unauthenticated, remote attacker to cause the device to reload unexpectedly, resulting in a DoS condition. This vulnerability is due to insufficient error checki...

CVE-2026-20105

A vulnerability in the Remote Access SSL VPN functionality of Cisco Secure Firewall Adaptive Security Appliance ASA Software and Secure Firewall Threat Defense FTD Software could allow an authenticated, remote attacker with a valid VPN connection to exhaust device memory resulting in a denial of...

EUVD-2026-9481

A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an authenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition. To exploit this vulnerability, the attacker must have the OSPF...

CVE-2026-20064

A vulnerability in of Cisco Secure Firewall Threat Defense FTD Software could allow an authenticated, local attacker to cause the device to unexpectedly reload, causing a denial of service DoS condition. This vulnerability is due to improper validation of user-supplied input. An attacker with a...

CVE-2026-20024

A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an authenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition. To exploit this vulnerability, the attacker must have the OSPF...

CVE-2026-20025

A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an authenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition. To exploit this vulnerability, the attacker must have the OSPF...

CVE-2026-20064

A vulnerability in of Cisco Secure Firewall Threat Defense FTD Software could allow an authenticated, local attacker to cause the device to unexpectedly reload, causing a denial of service DoS condition. This vulnerability is due to improper validation of user-supplied input. An attacker with a...

CVE-2026-20024

CVE-2026-20024 affects Cisco Secure Firewall ASA Software and Cisco Secure FTD Software. The root cause is heap corruption in the OSPF service when parsing packets, exploitable by an adjacent, authenticated attacker who has the OSPF secret key. Successful exploitation can cause the device to relo...

CVE-2026-20024

A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an authenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition. To exploit this vulnerability, the attacker must have the OSPF...

CVE-2026-20024

A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an authenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition. To exploit this vulnerability, the attacker must have the OSPF...

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...