Vulnerabilities (CVE)

Filtered by vendor Cisco Subscribe
Filtered by product Ncs 540
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2019-16027 1 Cisco 32 Asr 9000, Asr 9000v, Asr 9001 and 29 more 2022-05-12 4.0 MEDIUM 6.5 MEDIUM
A vulnerability in the implementation of the Intermediate System–to–Intermediate System (IS–IS) routing protocol functionality in Cisco IOS XR Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition in the IS–IS process. The vulnerability is due to improper handling of a Simple Network Management Protocol (SNMP) request for specific Object Identifiers (OIDs) by the IS–IS process. An attacker could exploit this vulnerability by sending a crafted SNMP request to the affected device. A successful exploit could allow the attacker to cause a DoS condition in the IS–IS process.
CVE-2021-34722 1 Cisco 44 8101-32fh, 8101-32h, 8102-64h and 41 more 2021-09-21 7.2 HIGH 6.7 MEDIUM
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 section of this advisory.
CVE-2021-34721 1 Cisco 44 8101-32fh, 8101-32h, 8102-64h and 41 more 2021-09-21 6.9 MEDIUM 6.7 MEDIUM
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 section of this advisory.
CVE-2021-1389 1 Cisco 12 Ios Xr, Ncs 540, Ncs 5501 and 9 more 2021-02-08 6.4 MEDIUM 6.5 MEDIUM
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 to improper processing of IPv6 traffic that is sent through an affected device. An attacker could exploit this vulnerability by sending crafted IPv6 packets that traverse the affected device. A successful exploit could allow the attacker to access resources that would typically be protected by the interface ACL.
CVE-2021-1136 1 Cisco 7 8201, 8202, 8808 and 4 more 2021-02-08 4.6 MEDIUM 6.7 MEDIUM
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 an affected device. For more information about these vulnerabilities, see the Details section of this advisory.
CVE-2021-1244 1 Cisco 7 8201, 8202, 8808 and 4 more 2021-02-08 4.6 MEDIUM 6.7 MEDIUM
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 an affected device. For more information about these vulnerabilities, see the Details section of this advisory.
CVE-2019-16018 1 Cisco 28 Asr 9000v, Asr 9001, Asr 9006 and 25 more 2020-02-03 4.3 MEDIUM 6.5 MEDIUM
A vulnerability in the implementation of Border Gateway Protocol (BGP) Ethernet VPN (EVPN) functionality in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to incorrect processing of a BGP update message that contains crafted EVPN attributes. An attacker could indirectly exploit the vulnerability by sending BGP EVPN update messages with a specific, malformed attribute to an affected system and waiting for a user on the device to display the EVPN operational routes’ status. If successful, the attacker could cause the BGP process to restart unexpectedly, resulting in a DoS condition. The Cisco implementation of BGP accepts incoming BGP traffic only from explicitly defined peers. To exploit this vulnerability, the malicious BGP update message would need to come from a configured, valid BGP peer, or would need to be injected by the attacker into the victim's BGP network on an existing, valid TCP connection to a BGP peer.