Cisco IOS XR Denial of Service Vulnerability (CNVD-2025-15800)

Cisco IOS XR is an operating system developed by the American company Cisco for its network devices. A denial of service vulnerability exists in Cisco IOS XR. The vulnerability stems from the incorrect handling of malformed IKEv2 packets. An attacker could exploit the vulnerability to cause a...

Cisco IOS XR Software Border Gateway Protocol Confederation DoS (cisco-sa-iosxr-bgp-dos-O7stePhX)

According to its self-reported version, Cisco IOS XR is affected by a vulnerability. - A vulnerability in confederation implementation for the Border Gateway Protocol BGPin Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition. This...

The vulnerability of the routing protocol BGP implementation in Cisco IOS XR allows a attacker to cause a service failure.

The vulnerability of the BGP routing protocol implementation in Cisco IOS XR operating systems lies in the fact that the operation data is written outside the buffer in memory. Exploiting this vulnerability allows a malicious actor to cause service failures by sending specially crafted BGP reques...

CVE-2025-20143

A vulnerability in the boot process of Cisco IOS XR Software could allow an authenticated, local attacker with high privileges to bypass the Secure Boot functionality and load unverified software on an affected device. To exploit this vulnerability, the attacker must have root-system privileges o...

CVE-2025-20145

A vulnerability in the access control list ACL processing in the egress direction of Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass a configured ACL. This vulnerability exists because certain packets are handled incorrectly when they are received on an ingress...

CVE-2025-20177

A vulnerability in the boot process of Cisco IOS XR Software could allow an authenticated, local attacker to bypass Cisco IOS XR image signature verification and load unverified software on an affected device. To exploit this vulnerability, the attacker must have root-system privileges on the...

CVE-2025-20144

A vulnerability in the hybrid access control list ACL processing of IPv4 packets in Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass a configured ACL. This vulnerability is due to incorrect handling of packets when a specific configuration of the hybrid ACL exists. ...

CVE-2025-20138

A vulnerability in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to execute arbitrary commands as root on the underlying operating system of an affected device. This vulnerability is due to insufficient validation of user arguments that are passed to specific CLI...

CVE-2025-20141

A vulnerability in the handling of specific packets that are punted from a line card to a route processor in Cisco IOS XR Software Release 7.9.2 could allow an unauthenticated, adjacent attacker to cause control plane traffic to stop working on multiple Cisco IOS XR platforms. This vulnerability ...

CVE-2025-20209

A vulnerability in the Internet Key Exchange version 2 IKEv2 function of Cisco IOS XR Software could allow an unauthenticated, remote attacker to prevent an affected device from processing any control plane UDP packets. This vulnerability is due to improper handling of malformed IKEv2 packets. An...

CVE-2025-20146

A vulnerability in the Layer 3 multicast feature of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers, ASR 9902 Compact High-Performance Routers, and ASR 9903 Compact High-Performance Routers could allow an unauthenticated, remote attacker to cause a line card to reset,...

CVE-2025-20115

A vulnerability in confederation implementation for the Border Gateway Protocol BGP in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition. This vulnerability is due to a memory corruption that occurs when a BGP update is created with a...

CVE-2025-20142

A vulnerability in the IPv4 access control list ACL feature and quality of service QoS policy feature of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers, ASR 9902 Compact High-Performance Routers, and ASR 9903 Compact High-Performance Routers could allow an...

Cisco IOS XR Software CLI Local Elevation of Privilege Vulnerability

Cisco IOS XR is a set of operating systems developed by the American company Cisco Cisco for its network equipment. A local elevation of privilege vulnerability exists in the Cisco IOS XR Software CLI. The vulnerability is due to insufficient validation of user parameters passed to specific CLI...

The vulnerability of the Cisco IOS XR operating system, related to deficiencies in access control, allows attackers to circumvent security restrictions.

The vulnerability of the Cisco IOS XR operating system is related to deficiencies in access control based on access control lists ACLs. Exploiting this vulnerability allows a malicious actor to bypass security restrictions remotely...

The vulnerability of the Cisco IOS XR operating system’s loader allows a hacker to circumvent existing security restrictions.

The vulnerability of the Cisco IOS XR operating system’s loader is related to errors in verifying the cryptographic signature. Exploiting this vulnerability could allow a hacker to circumvent existing security restrictions...

CVE-2025-20177

A vulnerability in the boot process of Cisco IOS XR Software could allow an authenticated, local attacker to bypass Cisco IOS XR image signature verification and load unverified software on an affected device. To exploit this vulnerability, the attacker must have root-system privileges on the...

CVE-2025-20145

A vulnerability in the access control list ACL processing in the egress direction of Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass a configured ACL. This vulnerability exists because certain packets are handled incorrectly when they are received on an ingress...

CVE-2025-20209

A vulnerability in the Internet Key Exchange version 2 IKEv2 function of Cisco IOS XR Software could allow an unauthenticated, remote attacker to prevent an affected device from processing any control plane UDP packets. This vulnerability is due to improper handling of malformed IKEv2 packets. An...

CVE-2025-20145

A vulnerability in the access control list ACL processing in the egress direction of Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass a configured ACL. This vulnerability exists because certain packets are handled incorrectly when they are received on an ingress...