CVE-2021-34718 Cisco IOS XR Software Arbitrary File Read and Write Vulnerability

A vulnerability in the SSH Server process of Cisco IOS XR Software could allow an authenticated, remote attacker to overwrite and read arbitrary files on the local device. This vulnerability is due to insufficient input validation of arguments that are supplied by the user for a specific file...

CVE-2021-34718

Cisco IOS XR Software contains an Arbitrary File Read/Write vulnerability in the SSH Server, exploitable by an authenticated, remote attacker via crafted SCP parameters during login. The issue stems from insufficient input validation of user-supplied arguments for the SCP file-transfer method, en...

CVE-2021-34713

Cisco IOS XR Software on ASR 9000 Series routers is affected by a Denial of Service affecting the Layer 2 punt code. The issue allows an unauthenticated, adjacent attacker to send specific Ethernet frames on the segment to trigger a spin loop, making the affected line card reboot or render its ne...

CVE-2021-34713 Cisco IOS XR Software for ASR 9000 Series Routers Denial of Service Vulnerability

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-2021-34713 Cisco IOS XR Software for ASR 9000 Series Routers Denial of Service Vulnerability

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-2021-34709 Cisco IOS XR Software for Cisco 8000 and Network Convergence System 540 Series Routers Image Verification Vulnerabilities

Multiple vulnerabilities in image verification checks of Cisco Network Convergence System NCS 540 Series Routers, only when running Cisco IOS XR NCS540L software images, and Cisco IOS XR Software for Cisco 8000 Series Routers could allow an authenticated, local attacker to execute arbitrary code ...

CVE-2021-34709 Cisco IOS XR Software for Cisco 8000 and Network Convergence System 540 Series Routers Image Verification Vulnerabilities

Multiple vulnerabilities in image verification checks of Cisco Network Convergence System NCS 540 Series Routers, only when running Cisco IOS XR NCS540L software images, and Cisco IOS XR Software for Cisco 8000 Series Routers could allow an authenticated, local attacker to execute arbitrary code ...

CVE-2021-34709

Cisco IOS XR image verification vulnerabilities (CVE-2021-34709) affect Cisco Network Convergence System 540 Series Routers and Cisco IOS XR Software for Cisco 8000 Series Routers, specifically when using NCS540L images. The flaw allows an authenticated, local attacker to execute arbitrary code o...

CVE-2021-34708 Cisco IOS XR Software for Cisco 8000 and Network Convergence System 540 Series Routers Image Verification Vulnerabilities

Multiple vulnerabilities in image verification checks of Cisco Network Convergence System NCS 540 Series Routers, only when running Cisco IOS XR NCS540L software images, and Cisco IOS XR Software for Cisco 8000 Series Routers could allow an authenticated, local attacker to execute arbitrary code ...

CVE-2021-34708

CVE-2021-34708 concerns multiple vulnerabilities in image verification checks on Cisco Network Convergence System (NCS) 540 Series Routers, observable when running Cisco IOS XR NCS540L software images and Cisco IOS XR Software for Cisco 8000 Series Routers. The flaws allow an authenticated, local...

Cisco IOS XR Software Denial of Service Vulnerability (CNVD-2021-102366)

Cisco IOS XR Software is an operating system developed by Cisco for its network devices.A denial-of-service vulnerability exists in Cisco IOS XR Software, which could be exploited by an attacker to cause the device to run out of packet memory or cause the IP SLA process to crash...

Cisco IOS XR Software Command Injection Vulnerability (CNVD-2021-102364)

Cisco IOS XR Software is an operating system developed by Cisco for its network devices.Cisco IOS XR Software is vulnerable to a command injection vulnerability that could be exploited to access the underlying root shell of the affected device and execute arbitrary commands with root privileges...

Cisco IOS XR Software Elevation of Privilege Vulnerability (CNVD-2021-102367)

Cisco IOS XR Software is an operating system developed by Cisco for its network devices.An elevation of privilege vulnerability exists in Cisco IOS XR Software, which could be exploited by attackers to elevate the privileges of affected devices...

Cisco IOS XR Software DHCP Denial of Service Vulnerability

Cisco IOS XR Software is a set of operating systems developed by Cisco for its network devices.Cisco IOS XR Software DHCP denial of service vulnerability can be exploited to trigger a crash of the dhcpd process, resulting in a denial of service...

Cisco IOS XR Software Command Injection Vulnerability

A command injection vulnerability exists in the CLI of Cisco IOS XR Software, a unique self-healing and self-defending operating system that not only supports 24x7 operations, but also allows for continuous expansion and addition of new services or features. The vulnerability stems from a program...

Cisco IOS XR Software Elevation of Privilege Vulnerability (CNVD-2021-102362)

Cisco IOS XR is an operating system developed by Cisco for its network devices.Cisco IOS XR Software has an elevation of privilege vulnerability that could be exploited by attackers to elevate the privileges of affected devices...

CVE-2021-34719

Multiple vulnerabilities in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker with a low-privileged account to elevate privileges on an affected device. For more information about these vulnerabilities, see the Details section of this advisory...

CVE-2021-34721

Multiple vulnerabilities in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to gain access to the underlying root shell of an affected device and execute arbitrary commands with root privileges. For more information about these vulnerabilities, see the Details sectio...

CVE-2021-34720

A vulnerability in the IP Service Level Agreements IP SLA responder and Two-Way Active Measurement Protocol TWAMP features of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause device packet memory to become exhausted or cause the IP SLA process to crash, resulting in ...

CVE-2021-34728

Multiple vulnerabilities in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker with a low-privileged account to elevate privileges on an affected device. For more information about these vulnerabilities, see the Details section of this advisory...