CVE-2021-1243 Cisco IOS XR Software SNMP Management Plane Protection ACL Bypass Vulnerability

A vulnerability in the Local Packet Transport Services LPTS programming of the SNMP with the management plane protection feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to allow connections despite the management plane protection that is configured to deny access ...

CVE-2021-1244

CVE-2021-1244 affects Cisco Network Convergence System (NCS) 540 Series Routers and Cisco IOS XR Software for the Cisco 8000 Series Routers, specifically when using NCS540L images, allowing an authenticated, local attacker to execute unsigned code during the boot process. Affected product scope i...

CVE-2021-1244 Cisco IOS XR Software for Cisco 8000 Series Routers and Network Convergence System 540 Series Routers Image Verification Vulnerabilities

Multiple vulnerabilities in Cisco Network Convergence System NCS 540 Series Routers, only when running Cisco IOS XR NCS540L software images, and Cisco IOS XR Software for the Cisco 8000 Series Routers could allow an authenticated, local attacker to execute unsigned code during the boot process on...

CVE-2021-1244 Cisco IOS XR Software for Cisco 8000 Series Routers and Network Convergence System 540 Series Routers Image Verification Vulnerabilities

Multiple vulnerabilities in Cisco Network Convergence System NCS 540 Series Routers, only when running Cisco IOS XR NCS540L software images, and Cisco IOS XR Software for the Cisco 8000 Series Routers could allow an authenticated, local attacker to execute unsigned code during the boot process on...

CVE-2021-1268

Cisco IOS XR Software contains a vulnerability in IPv6 handling on management interfaces that allows an unauthenticated, adjacent attacker to cause an IPv6 flood and potential DoS by injecting IPv6 node-local multicast traffic to the management network. The issue stems from incorrect forwarding o...

CVE-2021-1288 Cisco IOS XR Software Enf Broker Denial of Service Vulnerability

Multiple vulnerabilities in the ingress packet processing function of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. For more information about these vulnerabilities, see the Details section of this advisory...

CVE-2021-1288

Cisco IOS XR Software is affected by CVE-2021-1288 (Enf Broker DoS). The issue stems from a logic error in the ingress packet processing function, with DoS possible via unauthenticated remote attackers sending crafted Telnet/ICMP streams that can crash or destabilize the enf_broker process, poten...

CVE-2021-1288 Cisco IOS XR Software Enf Broker Denial of Service Vulnerability

Multiple vulnerabilities in the ingress packet processing function of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. For more information about these vulnerabilities, see the Details section of this advisory...

Vulnerabilities fixed in Cisco IOS XR

Cisco has fixed several vulnerabilities in IOS XR. A unauthenticated malicious person could remotely exploit them to cause a denial-of-service, circumvent bypassing security measures or obtaining system information. The vulnerabilities marked CVE-2021-1288 and CVE-2021-1313 involve a...

Cisco IOS XR Denial of Service Vulnerability (CNVD-2021-09295)

Cisco IOS XR software is a modular and fully distributed network operating system for service provider networks. A denial of service vulnerability exists in Cisco IOS XR's IPv6 protocol processing. The vulnerability stems from the software not properly forwarding IPv6 packets that have an IPv6 no...

Cisco IOS XR Information Disclosure Vulnerability

Cisco IOS XR software is a modular and fully distributed network operating system for service provider networks. An information disclosure vulnerability exists in the CLI parser in Cisco IOS XR versions prior to 7.1.2, 7.2.1, and 7.3.1. The vulnerability stems from insufficient application of...

Cisco IOS XR Denial of Service Vulnerability (CNVD-2021-09297)

Cisco IOS XR software is a modular and fully distributed network operating system for service provider networks. A denial of service vulnerability exists in the ingress packet processing function of Cisco IOS XR. The vulnerability stems from a logic error in the processing of Telnet protocol...

Cisco IOS XR Denial of Service Vulnerability (CNVD-2021-09296)

Cisco IOS XR software is a modular and fully distributed network operating system for service provider networks. A denial of service vulnerability exists in the ingress packet processing function of Cisco IOS XR. The vulnerability stems from improper resource allocation when an affected device...

Cisco IOS XR and Cisco NX-OS Software Access Control Error Vulnerability

Cisco NX-OS Software and Cisco IOS XR are both products of Cisco U.S.A. Cisco NX-OS Software is a suite of data center-class operating system software for switches. cisco IOS XR is a suite of operating systems developed for its network devices. cisco IOS XR and Cisco NX-OS Software is vulnerable ...

Cisco IOS XR and Cisco NX-OS Software IPv6 Access Control List Bypass Vulnerability

A vulnerability in the IPv6 traffic processing of Cisco IOS XR Software and Cisco NX-OS Software for certain Cisco devices could allow an unauthenticated, remote attacker to bypass an IPv6 access control list ACL that is configured for an interface of an affected device. The vulnerability is due ...

Cisco IOS XR Software for Cisco 8000 Series Routers and Network Convergence System 540 Series Routers Privilege Escalation Vulnerability

A vulnerability in a CLI command of Cisco IOS XR Software for the Cisco 8000 Series Routers and Network Convergence System 540 Series Routers running NCS540L software images could allow an authenticated, local attacker to elevate their privilege to root. To exploit this vulnerability, an attacker...

Cisco IOS XR Software Unauthorized Information Disclosure Vulnerability

A vulnerability in the CLI parser of Cisco IOS XR Software could allow an authenticated, local attacker to view more information than their privileges allow. The vulnerability is due to insufficient application of restrictions during the execution of a specific command. An attacker could exploit...

CVE-2021-1288

Multiple vulnerabilities in the ingress packet processing function of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. For more information about these vulnerabilities, see the Details section of this advisory...

Cisco IOS XR Software for Cisco 8000 Series Routers and Network Convergence System 540 Series Routers Image Verification Vulnerabilities

Multiple vulnerabilities in Cisco Network Convergence System NCS 540 Series Routers, only when running Cisco IOS XR NCS540L software images, and Cisco IOS XR Software for the Cisco 8000 Series Routers could allow an authenticated, local attacker to execute unsigned code during the boot process on...

Cisco IOS XR Software Enf Broker Denial of Service Vulnerability

Multiple vulnerabilities in the ingress packet processing function of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. For more information about these vulnerabilities, see the Details "details" section of this...