CVE-2020-3492 Cisco IOS XE Software for Catalyst 9800 Series and Cisco AireOS Software for Cisco WLC Flexible NetFlow Version 9 Denial of Service Vulnerability

A vulnerability in the Flexible NetFlow Version 9 packet processor of Cisco IOS XE Software for Cisco Catalyst 9800 Series Wireless Controllers and Cisco AireOS Software for Cisco Wireless LAN Controllers WLC could allow an unauthenticated, remote attacker to cause a denial of service DoS conditi...

CVE-2020-3492

CVE-2020-3492 affects Cisco IOS XE Software for Catalyst 9800 Series Wireless Controllers and Cisco AireOS Software for Cisco Wireless LAN Controllers (WLC). The issue is in the Flexible NetFlow Version 9 packet processor, caused by insufficient validation of certain parameters in a Flexible NetF...

CVE-2020-3494

Cisco CVE-2020-3494 affects Cisco IOS XE Software for the Catalyst 9800 Series Wireless Controllers and relates to multiple CAPWAP processing vulnerabilities caused by insufficient validation of CAPWAP packets. An unauthenticated, adjacent attacker can send malformed CAPWAP packets to trigger a c...

CVE-2020-3503 Cisco IOS XE Software Guest Shell Unauthorized File System Access Vulnerability

A vulnerability in the file system permissions of Cisco IOS XE Software could allow an authenticated, local attacker to obtain read and write access to critical configuration or system files. The vulnerability is due to insufficient file system permissions on an affected device. An attacker could...

CVE-2020-3503

Summary of CVE-2020-3503 (Cisco IOS XE Guest Shell Unauthorized File System Access) Cisco IOS XE Software contains a vulnerability in the file system permissions of the guest shell. The issue stems from insufficient file system permissions, allowing an authenticated, local attacker to access or m...

CVE-2020-3503 Cisco IOS XE Software Guest Shell Unauthorized File System Access Vulnerability

A vulnerability in the file system permissions of Cisco IOS XE Software could allow an authenticated, local attacker to obtain read and write access to critical configuration or system files. The vulnerability is due to insufficient file system permissions on an affected device. An attacker could...

CVE-2020-3508 Cisco IOS XE Software for Cisco ASR 1000 Series 20-Gbps Embedded Services Processor IP ARP Denial of Service Vulnerability

A vulnerability in the IP Address Resolution Protocol ARP feature of Cisco IOS XE Software for Cisco ASR 1000 Series Aggregation Services Routers with a 20-Gbps Embedded Services Processor ESP installed could allow an unauthenticated, adjacent attacker to cause an affected device to reload,...

CVE-2020-3508 Cisco IOS XE Software for Cisco ASR 1000 Series 20-Gbps Embedded Services Processor IP ARP Denial of Service Vulnerability

A vulnerability in the IP Address Resolution Protocol ARP feature of Cisco IOS XE Software for Cisco ASR 1000 Series Aggregation Services Routers with a 20-Gbps Embedded Services Processor ESP installed could allow an unauthenticated, adjacent attacker to cause an affected device to reload,...

CVE-2020-3508

CVE-2020-3508 affects Cisco IOS XE on ASR 1000 Series with a 20-Gbps ESP. An unauthenticated, adjacent attacker can send crafted IP ARP messages to exhaust resources and cause a reload (DoS) due to insufficient error handling at platform limits. Affected device: ASR 1000 with ESP; vulnerability l...

CVE-2020-3509

CVE-2020-3509 affects Cisco IOS XE with the cBR-8 Converged Broadband Router. The root cause is insufficient error handling while parsing DHCPv4 messages in the DHCP message handler, allowing an unauthenticated, remote attacker to crash the supervisor and cause a DoS via a malicious DHCPv4 packet...

CVE-2020-3509 Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers DHCP Denial of Service Vulnerability

A vulnerability in the DHCP message handler of Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers could allow an unauthenticated, remote attacker to cause the supervisor to crash, which could result in a denial of service DoS condition. The vulnerability is due to insufficient erro...

CVE-2020-3509 Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers DHCP Denial of Service Vulnerability

A vulnerability in the DHCP message handler of Cisco IOS XE Software for Cisco cBR-8 Converged Broadband Routers could allow an unauthenticated, remote attacker to cause the supervisor to crash, which could result in a denial of service DoS condition. The vulnerability is due to insufficient erro...

CVE-2020-3510

CVE-2020-3510 affects Cisco IOS XE Umbrella Connector on Catalyst 9200 Series switches. Root cause: insufficient error handling when parsing DNS requests. An unauthenticated remote attacker can send malicious DNS requests to the Umbrella Connector client interface, potentially crashing the iosd p...

CVE-2020-3511

CVE-2020-3511 affects Cisco IOS and IOS XE ISDN Q.931 handling. The issue stems from insufficient input validation in the ISDN Q.931 message processing, which could allow an unauthenticated, adjacent attacker to cause a crash and reload, resulting in DoS. Vulnerable software includes Cisco IOS an...

CVE-2020-3513

CVE-2020-3513 affects Cisco IOS XE Software on Cisco ASR 900 Series Routers with Route Switch Processor 3 (RSP3). Connected advisories confirm multiple boot-time vulnerabilities tied to incorrect ROMMON variable handling and boot-script validation, enabling an authenticated local attacker with hi...

CVE-2020-3516 Cisco IOS XE Software Web UI Improper Input Validation Vulnerability

A vulnerability in the web server authentication of Cisco IOS XE Software could allow an authenticated, remote attacker to crash the web server on the device. The vulnerability is due to insufficient input validation during authentication. An attacker could exploit this vulnerability by entering...

CVE-2020-3516

CVE-2020-3516 describes an issue in the web server authentication of Cisco IOS XE Software, due to insufficient input validation during authentication. An authenticated, remote attacker could crash the device’s web server by sending unexpected characters during login. The vulnerability affects Ci...

CVE-2020-3524 Cisco IOS XE ROM Monitor Software Vulnerability

A vulnerability in the Cisco IOS XE ROM Monitor ROMMON Software for Cisco 4000 Series Integrated Services Routers, Cisco ASR 920 Series Aggregation Services Routers, Cisco ASR 1000 Series Aggregation Services Routers, and Cisco cBR-8 Converged Broadband Routers could allow an unauthenticated,...

CVE-2020-3524

Cisco IOS XE ROMMON vulnerability (CVE-2020-3524) affects the ROMMON software on Cisco 4000 Series routers, ASR 920/1000 Series, and cBR-8. The root cause is a debugging configuration option in the ROMMON image. An unauthenticated, physical attacker can connect to the device console, boot into RO...

CVE-2020-3526 Cisco IOS XE Software Common Open Policy Service Engine Denial of Service Vulnerability

A vulnerability in the Common Open Policy Service COPS engine of Cisco IOS XE Software on Cisco cBR-8 Converged Broadband Routers could allow an unauthenticated, remote attacker to crash a device. The vulnerability is due to insufficient input validation. An attacker could exploit this...