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CVSS: 6.8EPSS: 0%CPEs: 10EXPL: 0

06 Jul 2019 — A vulnerability in the implementation of Border Gateway Protocol (BGP) functionality in Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected system. The vulnerability is due to incorrect processing of certain BGP update messages. An attacker could exploit this vulnerability by sending BGP update messages that include a specific set of attributes to be processed by an affected system. A successful exploit could allow the attacker to... • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190703-iosxr-bgp-dos • CWE-20: Improper Input Validation •

CVSS: 5.5EPSS: 0%CPEs: 32EXPL: 0

05 Jun 2019 — A vulnerability in the Secure Shell (SSH) authentication function of Cisco IOS XR Software could allow an authenticated, remote attacker to successfully log in to an affected device using two distinct usernames. The vulnerability is due to a logic error that may occur when certain sequences of actions are processed during an SSH login event on the affected device. An attacker could exploit this vulnerability by initiating an SSH session to the device with a specific sequence that presents the two usernames.... • http://www.securityfocus.com/bid/108687 • CWE-285: Improper Authorization CWE-287: Improper Authentication •

CVSS: 7.4EPSS: 0%CPEs: 11EXPL: 0

16 May 2019 — A vulnerability in the Multiprotocol Label Switching (MPLS) Operations, Administration, and Maintenance (OAM) implementation of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, adjacent attacker to trigger a denial of service (DoS) condition on an affected device. The vulnerability is due to the incorrect handling of certain MPLS OAM packets. An attacker could exploit this vulnerability by sending malicious MPLS OAM packets to an affected device. A... • http://www.securityfocus.com/bid/108363 • CWE-20: Improper Input Validation •

CVSS: 8.6EPSS: 0%CPEs: 12EXPL: 0

17 Apr 2019 — 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 processing of the ACL applied to an interface of an affected device when Cisco Express Forwarding load balancing using the 3-tuple hash algorithm is enabled. An attacker could exploit this vulnerability by sending tr... • http://www.securityfocus.com/bid/108026 • CWE-284: Improper Access Control •

CVSS: 6.8EPSS: 0%CPEs: 19EXPL: 0

05 Oct 2018 — A vulnerability in the implementation of Border Gateway Protocol (BGP) 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 certain BGP update messages. An attacker could exploit this vulnerability by sending BGP update messages that include a specific, malformed attribute to be processed by an affected system. A successful exploit could allow the attacker to cause the BGP proc... • http://www.securitytracker.com/id/1041790 • CWE-20: Improper Input Validation •

CVSS: 8.6EPSS: 1%CPEs: 11EXPL: 0

15 Aug 2018 — 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 validation checking on certain Precision Time Protocol (PTP) ingress traffic to an affected device. An attacker could exploit this vulnerability by injecting malformed traffic into an affected device. A successfu... • http://www.securityfocus.com/bid/105185 • CWE-20: Improper Input Validation CWE-400: Uncontrolled Resource Consumption •

CVSS: 7.4EPSS: 0%CPEs: 21EXPL: 0

19 Apr 2018 — A vulnerability in the UDP broadcast forwarding function of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition on the affected device. The vulnerability is due to improper handling of UDP broadcast packets that are forwarded to an IPv4 helper address. An attacker could exploit this vulnerability by sending multiple UDP broadcast packets to the affected device. An exploit could allow the attacker to cause a buffer leak on the affected device, ... • http://www.securityfocus.com/bid/103929 • CWE-399: Resource Management Errors •

CVSS: 8.8EPSS: 1%CPEs: 24EXPL: 0

28 Mar 2018 — Multiple Buffer Overflow vulnerabilities in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition or execute arbitrary code with elevated privileges on an affected device. Cisco Bug IDs: CSCuo17183, CSCvd73487. Múltiples vulnerabilidades de desbordamiento de búfer en el subsistema LLDP (Link Layer Discovery Protocol) de Cisco IOS Software, Cisco ... • http://www.securityfocus.com/bid/103564 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 8.6EPSS: 1%CPEs: 9EXPL: 0

31 Jan 2018 — 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 vulnerability is due to incorrect handling of IPv6 packets with a fragment header extension. An attacker could exploit this vulnerability by sending IPv6 packets designed to trigger the issue either to or through... • http://www.securityfocus.com/bid/102905 • CWE-20: Improper Input Validation •

CVSS: 7.5EPSS: 1%CPEs: 85EXPL: 0

25 May 2016 — Cisco IOS XR through 5.3.2 mishandles Local Packet Transport Services (LPTS) flow-base entries, which allows remote attackers to cause a denial of service (session drop) by making many connection attempts to open TCP ports, aka Bug ID CSCux95576. Cisco IOS XR hasta la versión 5.3.2 no maneja correctamente las entradas basadas en los flujos Local Packet Transport Services (LPTS), lo que permite a atacantes remotos provocar una denegación de servicio (caída de sesión) haciendo muchos intentos de conexión para... • http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160519-ios-xr • CWE-20: Improper Input Validation •