EUVD-2011-2532

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CVE-2025-20146

The CVE-2025-20146 entry describes a vulnerability in Cisco IOS XR Software for the ASR 9000 Series, including ASR 9902/9903 routers. The issue stems from incorrect handling of malformed IPv4 multicast packets on line cards where the interface has an IPv4 ACL or QoS policy. An unauthenticated, re...

CVE-2025-20146 Cisco IOS XR Software for ASR 9000 Series Routers Layer 3 Multicast Routing Denial of Service Vulnerability

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-2025-20142 Cisco IOS XR Software for ASR 9000 Series Routers L2VPN Denial of Service Vulnerability

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...

CVE-2025-20146: Improper Input Validation

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-2025-20142: Improper Input Validation

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...

The vulnerability of the BFD discovery protocol implementation in Cisco IOS XR routers of the Cisco ASR 9000, 9902, and 9903 models allows a attacker to cause service interruptions.

The vulnerability of the BFD discovery protocol implementation in Cisco IOS XR routers of the Cisco ASR 9000, 9902, and 9903 family is related to errors in processing input data. Exploiting this vulnerability allows a malicious actor to cause service interruptions by sending specially crafted BFD...

Cisco IOS XR Software for ASR 9000 Series Routers Bidirectional Forwarding Detection Denial of Service Vulnerability

A vulnerability in the bidirectional forwarding detection BFD hardware offload 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...

CVE-2022-20714: Buffer Over-read

A vulnerability in the data plane microcode of Lightspeed-Plus line cards for Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause the line card to reset. This vulnerability is due to the incorrect handling of malformed packets that are...

Cisco IOS XR Software for ASR 9000 Series Routers Lightspeed-Plus Line Cards Denial of Service Vulnerability

A vulnerability in the data plane microcode of Lightspeed-Plus line cards 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 the line card to rese...

CVE-2021-34713: Undefined Security Weakness

A vulnerability in the Layer 2 punt code of Cisco IOS XR Software running on Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, adjacent attacker to cause the affected line card to reboot. This vulnerability is due to incorrect handling of specific Ethernet frames...

CVE-2020-26070

A vulnerability in the ingress packet processing function of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. The vulnerability is due to improper resource...

CVE-2020-26070: Improper Resource Shutdown or Release

A vulnerability in the ingress packet processing function of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. The vulnerability is due to improper resource...

Vulnerabilities fixed in Cisco IOS XR and ASR

Cisco has fixed multiple vulnerabilities in IOS XR and 9000-series Aggregation Services Routers ASR. The vulnerabilities potentially enable a local, authenticated malicious agent to execute attacks that result in the following categories of damage: Denial-of-Service DoS Manipulation of data...

Input validation

A vulnerability in a CLI command related to the virtualization manager VMAN in Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers could allow an authenticated, local attacker to execute arbitrary commands on the underlying Linux operating system with root privileges. The...

CVE-2019-12709: Improper Neutralization of Special Elements used in an OS Command

A vulnerability in a CLI command related to the virtualization manager VMAN in Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers could allow an authenticated, local attacker to execute arbitrary commands on the underlying Linux operating system with root privileges. The...

CVE-2019-1686: Improper Access Control

A vulnerability in the TCP flags inspection feature for access control lists ACLs on Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to bypass protection offered by a configured ACL on an affected device. The vulnerability is due to incorrect...

CVE-2019-1710: Improper Input Validation

A vulnerability in the sysadmin virtual machine VM on Cisco ASR 9000 Series Aggregation Services Routers running Cisco IOS XR 64-bit Software could allow an unauthenticated, remote attacker to access internal applications running on the sysadmin VM. The vulnerability is due to incorrect isolation...

CVE-2018-0418: Uncontrolled Resource Consumption

A vulnerability in the Local Packet Transport Services LPTS feature set of Cisco ASR 9000 Series Aggregation Services Router Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. The vulnerability is due to a lack of input and...

CVE-2018-0136

A vulnerability in the IPv6 subsystem of Cisco IOS XR Software Release 5.3.4 for the Cisco Aggregation Services Router ASR 9000 Series could allow an unauthenticated, remote attacker to trigger a reload of one or more Trident-based line cards, resulting in a denial of service DoS condition. The...