CVE-2025-20159

CVE-2025-20159 describes a vulnerability in Cisco IOS XR Software: management interface ACL processing can be bypassed by an unauthenticated remote attacker for the SSH, NetConf, and gRPC features. The root cause is that management interface ACLs are not supported on Cisco IOS XR Packet I/O infra...

CVE-2025-20248 Cisco IOS XR Software Image Verification Bypass Vulnerability

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

CVE-2025-20248

CVE-2025-20248 affects Cisco IOS XR Software, where an authenticated local attacker with root privileges can bypass image signature verification during installation and load unsigned software via manipulation of contents in an .iso. The root cause is incomplete validation of files during .iso ins...

Cisco IOS XR Software Management Interface ACL Bypass Vulnerability

A vulnerability in the management interface access control list ACL processing feature in Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass configured ACLs for the SSH, NetConf, and gRPC features. This vulnerability exists because management interface ACLs have not...

Cisco IOS XR ARP Broadcast Storm Denial of Service Vulnerability

A vulnerability in the Address Resolution Protocol ARP implementation of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to trigger a broadcast storm, leading to a denial of service DoS condition on an affected device. This vulnerability is due to how Cisco IOS XR Software...

Cisco IOS XR Software Image Verification Bypass Vulnerability

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

Cisco IOS XR 访问控制错误漏洞

Cisco IOS XR is a set of operating systems developed by the American company Cisco Cisco for its network equipment. Cisco IOS XR suffers from an Access Control Error vulnerability that stems from improper access control of the management interface ACL, which can be exploited by an attacker to cau...

PT-2025-37063

Name of the Vulnerable Software and Affected Versions: Cisco IOS XR Software affected versions not specified Description: A vulnerability in the management interface access control list ACL processing feature could allow an unauthenticated, remote attacker to bypass configured ACLs for the SSH,...

PT-2025-37064

Name of the Vulnerable Software and Affected Versions: Cisco IOS XR Software affected versions not specified Description: A flaw in the installation process of Cisco IOS XR Software may allow an authenticated, local attacker to bypass the image signature verification and load unsigned software on...

CVE-2024-20390

A vulnerability in the Dedicated XML Agent feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service DoS on XML TCP listen port 38751. This vulnerability is due to a lack of proper error validation of ingress XML packets. An attacker could explo...

CVE-2024-20343

A vulnerability in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to read any file in the file system of the underlying Linux operating system. The attacker must have valid credentials on the affected device. This vulnerability is due to incorrect validation of the...

CVE-2024-20319

A vulnerability in the UDP forwarding code of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to bypass configured management plane protection policies and access the Simple Network Management Plane SNMP server of an affected device. This vulnerability is due to incorrect...

CVE-2024-20315

A vulnerability in the access control list ACL processing on MPLS interfaces in the ingress direction of Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass a configured ACL. This vulnerability is due to improper assignment of lookup keys to internal interface contexts...

CVE-2024-20322

A vulnerability in the access control list ACL processing on Pseudowire interfaces in the ingress direction of Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass a configured ACL. This vulnerability is due to improper assignment of lookup keys to internal interface...

CVE-2024-20262

A vulnerability in the Secure Copy Protocol SCP and SFTP feature of Cisco IOS XR Software could allow an authenticated, local attacker to create or overwrite files in a system directory, which could lead to a denial of service DoS condition. The attacker would require valid user credentials to...

CVE-2024-20266

A vulnerability in the DHCP version 4 DHCPv4 server feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to trigger a crash of the dhcpd process, resulting in a denial of service DoS condition. This vulnerability exists because certain DHCPv4 messages are improperly...

CVE-2023-20233

A vulnerability in the Connectivity Fault Management CFM feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability is due to incorrect processing of invalid continuity check messages CCMs. ...

CVE-2023-20135

A vulnerability in Cisco IOS XR Software image verification checks could allow an authenticated, local attacker to execute arbitrary code on the underlying operating system. This vulnerability is due to a time-of-check, time-of-use TOCTOU race condition when an install query regarding an ISO imag...

CVE-2023-20190

A vulnerability in the classic access control list ACL compression feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to bypass the protection that is offered by a configured ACL on an affected device. This vulnerability is due to incorrect destination address range...

CVE-2023-20236

A vulnerability in the iPXE boot function of Cisco IOS XR software could allow an authenticated, local attacker to install an unverified software image on an affected device. This vulnerability is due to insufficient image verification. An attacker could exploit this vulnerability by manipulating...