Cisco IOS XE WLC - Arbitrary File Upload

A vulnerability in the Out-of-Band Access Point AP Image Download feature of Cisco IOS XE Software for Wireless LAN Controllers WLCs could allow an unauthenticated, remote attacker to upload arbitrary files to an affected system.This vulnerability is due to the presence of a hard-coded JSON Web...

Cisco IOS XE Software Security Hardening Release: August 2026 (cisco-sa-hardening-iosxe-V8NMuMZJ)

According to its self-reported version, Cisco IOS-XE Software is affected by multiple vulnerabilities. - As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software engineering team has conducted a comprehensive internal security review. This review...

Cisco IOS XE Software Extensible Messaging Client Protocol DoS (cisco-sa-ios-xmcp-thbAr34t)

According to its self-reported version, Cisco IOS-XE Software is affected by a denial of service vulnerability. A flaw exists in the Extensible Messaging Client Protocol XMCP due to improper handling of malformed XMCP packets. An unauthenticated, remote attacker can exploit this issue, via a...

Cisco IOS Software Extensible Messaging Client Protocol DoS (cisco-sa-ios-xmcp-thbAr34t)

According to its self-reported version, Cisco IOS is affected by a denial of service vulnerability. A flaw exists in the Extensible Messaging Client Protocol XMCP due to improper handling of malformed XMCP packets. An unauthenticated, remote attacker can exploit this issue, via a malformed XMCP...

The vulnerability of Cisco IOS XE operating systems, related to the implementation of incorrect control flow, allows attackers to compromise the accessibility of protected information.

The vulnerability of Cisco IOS XE operating systems is related to the implementation of incorrect control flow. Exploiting this vulnerability allows a remote attacker to compromise the accessibility of protected information...

CVE-2026-20301

A vulnerability in the Extensible Messaging Client Protocol XMCP, also referred to as the External Client protocol, of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability ...

CVE-2026-20272

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The...

CVE-2026-20271

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The...

CVE-2026-20270

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The...

CVE-2026-20263

A vulnerability in the Blocks Extensible Exchange Protocol BEEP feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability is due to improper handling when parsing a specific BEEP SOAP...

CVE-2026-20267

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The...

CVE-2026-20124

A vulnerability in the Simple Network Management Protocol SNMP subsystem of Cisco IOS XE Software could allow an authenticated, remote attacker to cause an affected device to reload, resulting in a denial of service DoS condition. This vulnerability is due to improper error handling when parsing...

EUVD-2026-53475

A vulnerability in the web-based management interface of Cisco IOS XE Software could allow an authenticated, remote attacker with low privileges to cause a denial of service DoS condition on an affected device. This vulnerability is due to insufficient error handling in the web-based management...

CVE-2026-20311

Cisco IOS XE Software web-based management interface is affected. A vulnerability allows an authenticated, low-privilege remote attacker to trigger a reload (DoS) by exploiting insufficient error handling when authenticating with a malformed certificate. Impact is DoS with availability impact; at...

CVE-2026-20301

A vulnerability in the Extensible Messaging Client Protocol XMCP, also referred to as the External Client protocol, of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability ...

EUVD-2026-53467

A vulnerability in the Extensible Messaging Client Protocol XMCP, also referred to as the External Client protocol, of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability ...

CVE-2026-20301

CVE-2026-20301 affects Cisco IOS Software and Cisco IOS XE Software via the Extensible Messaging Client Protocol (XMCP / External Client protocol). The flaw is improper handling of malformed XMCP packets, enabling an unauthenticated, remote attacker to trigger a device reload and cause a DoS. The...

EUVD-2026-53461

A vulnerability in the web-based management interface of Cisco IOS XE Software could allow an authenticated, remote attacker with low privileges to perform a denial of service DoS attack against an affected device. This vulnerability is due to insufficient input validation. An attacker could...

CVE-2026-20308

A vulnerability in the web-based management interface of Cisco IOS XE Software could allow an authenticated, remote attacker with low privileges to perform a denial of service DoS attack against an affected device. This vulnerability is due to insufficient input validation. An attacker could...

CVE-2026-20308

CVE-2026-20308 : A vulnerability in the web-based management interface of Cisco IOS XE Software could allow an authenticated, low-privilege attacker to perform a DoS against an affected device. The issue stems from insufficient input validation in the web UI; sending crafted input can cause the w...