Cisco IOS Frame Forwarding Denial of Service Vulnerability

A vulnerability in Cisco IOS on Catalysts Switches and Nexus 9300 Series Switches could allow an unauthenticated, adjacent attacker to cause a Layer 2 network storm. The vulnerability occurs because the software forwards Layer 2 frames that should be consumed by the first hop. An attacker could...

Cisco Email Security Appliance MIME Header Processing Filter Bypass Vulnerability

A vulnerability in the email filtering functionality of Cisco AsyncOS Software for Cisco Email Security Appliances could allow an unauthenticated, remote attacker to bypass Advanced Malware Protection AMP filters that are configured for an affected device. The vulnerability is due to improper err...

Cisco Email and Web Security Appliance MIME Header Bypass Vulnerability

A vulnerability in the email filtering for malformed Multipurpose Internet Mail Extensions MIME headers of Cisco AsyncOS Software for Cisco Email Security Appliances ESA and Web Security Appliances WSA could allow an unauthenticated, remote attacker to bypass the filtering functionality of the...

Cisco ASA Software Identity Firewall Feature Buffer Overflow Vulnerability

A vulnerability in the Identity Firewall feature of Cisco ASA Software could allow an unauthenticated, remote attacker to cause a reload of the affected system or to remotely execute code. The vulnerability is due to a buffer overflow in the affected code area. An attacker could exploit this...

Cisco Finesse Cross-Site Request Forgery Vulnerability

A vulnerability in Cisco Finesse Agent and Supervisor Desktop Software could allow an unauthenticated, remote attacker to conduct a cross-site request forgery CSRF attack against the user of the web interface. The vulnerability is due to insufficient CSRF protections. An attacker could exploit th...

Cisco Small Business SPA3x/5x Series Denial of Service Vulnerability

A vulnerability in the HTTP framework of Cisco Small Business SPA300 Series IP Phones, Cisco Small Business SPA500 Series IP Phones, and Cisco SPA51x IP Phones could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. The vulnerability is du...

Cisco Aironet 1800, 2800, and 3800 Series Access Point Platforms 802.11 Protocol Denial of Service Vulnerability

A vulnerability in the 802.11 wireless LAN protocol for Cisco Access Point AP platforms could allow an unauthenticated, adjacent attacker to cause a denial of service DoS condition when the device unexpectedly reloads. The vulnerability is due to rate limiting of 802.11 traffic. An attacker could...

Cisco WebEx Meetings Server Administrator Interface Cross-Site Request Forgery Vulnerability

A vulnerability in Cisco WebEx Meetings Server could allow an unauthenticated, remote attacker to conduct a cross-site request forgery CSRF attack against the user of the web interface. The vulnerability is due to insufficient CSRF protections. An attacker could exploit this vulnerability by...

Cisco Email Security Appliance .zip File Scanning Security Bypass Vulnerability

A vulnerability in the Message Filter and Content Filter of the Cisco Email Security Appliance ESA could allow an unauthenticated, remote attacker to bypass the filtering functionality of an affected system. The vulnerability is due to improper handling of content in .zip files. An attacker could...

Cisco Unified Contact Center Enterprise Web-Based Management Interface Cross-Site Scripting Vulnerability

A vulnerability in the HTTP web-based management interface of Cisco Unified Contact Center Enterprise Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting XSS attack against a user of the web interface of an affected system. The vulnerability is due to...

Cisco Prime Collaboration Deployment SQL Injection Vulnerability

A vulnerability in the interface of the Cisco Prime Collaboration Deployment SQL database could allow an authenticated, remote attacker to impact the confidentiality of the system by executing arbitrary SQL queries. The vulnerability is due to a lack of input validation for user-supplied input in...

Cisco Prime Network Registrar System Configuration Protocol Information Disclosure Vulnerability

A vulnerability in the System Configuration Protocol SCP core messaging interface of the Cisco Prime Network Registrar could allow an unauthenticated, remote attacker to access sensitive data. The attacker could use this information to conduct additional reconnaissance attacks. The vulnerability ...

Cisco Prime Network Analysis Module Authenticated Remote Code Execution Vulnerability

A vulnerability in the web interface of Cisco Prime Network Analysis Module NAM and Cisco Prime Virtual Network Analysis Module vNAM could allow an authenticated, remote attacker to execute arbitrary commands or code on the host operating system with the privileges of the web server. The...

Cisco Unity Connection Cross-Site Scripting Vulnerability

A vulnerability in the web framework of Cisco Unity Connection could allow an unauthenticated, remote attacker to conduct a cross-site scripting XSS attack against the user of the web interface of the affected system. The vulnerability is due to insufficient input validation of certain parameters...

Cisco IOS Software Wide Area Application Services Express Denial of Service Vulnerability

A vulnerability in the Wide Area Application Services WAAS Express feature of Cisco IOS Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to insufficient validation of TCP segments. An attacker could exploit this vulnerability...

Cisco Policy Suite Confidential Information Disclosure Vulnerability

A vulnerability in password management administration of the Cisco Policy Suite CPS application could allow an unauthenticated, remote attacker to gain read-only access to information that is confidential and should have restricted access. The vulnerability is due to the lack of a proper role-bas...

Cisco Small Business SG300 Managed Switch Web Framework GUI Function Denial of Service Vulnerability

A vulnerability in the GUI function in the web framework code of Cisco Small Business SG300 Managed Switches could allow an unauthenticated, remote attacker to cause the HTTPS process to become unresponsive, resulting in a partial denial of service DoS condition. The vulnerability is due to...

Cisco Identity Services Engine Unauthorized Access Vulnerability

Cisco Identity Services Engine versions prior to 2.0 contain a vulnerability that could allow a low-privileged authenticated, remote attacker to access specific web resources that are designed to be accessed only by higher-privileged administrative users. The vulnerability occurs because specific...

Cisco Integrated Management Controller Denial of Service Vulnerability

A vulnerability in Cisco Integrated Management Controller IMC could allow an authenticated, remote attacker to make the IMC IP interface inaccessible. The vulnerability is due to incomplete sanitization of input for certain parameters. An attacker could exploit this vulnerability by sending a...

Cisco Unified Email Interaction Manager and Cisco Unified Web Interaction Manager XSS Vulnerability

A vulnerability in the web interface of Cisco Unified Email Interaction Manager and Cisco Unified Web Interaction Manager could allow an unauthenticated, remote attacker to conduct a cross-site scripting XSS attack against a user of the affected system. The vulnerability is due to insufficient...

Cisco FireSight Management Center Web Framework Cross-Site Scripting Vulnerability

A vulnerability in the web framework of Cisco FireSIGHT Management Center MC could allow an authenticated, remote attacker to execute a stored, cross-site scripting XSS attack against a user of the web interface. The vulnerability is due to improper sanitization of parameter values. An attacker...

Cisco IOS Software RADIUS Client Denial of Service Vulnerability

A vulnerability in the RADIUS client feature of Cisco IOS Software could allow an authenticated, remote attacker to cause a reload of the affected device. The vulnerability is due to improper parsing of malformed RADIUS packets returned by a RADIUS server. An attacker could exploit this...

Cisco Unified Computing System C-Series Servers Man-in-the-Middle Vulnerability

A vulnerability in the Cisco Integrated Management Controller of the Cisco Unified Computing System UCS C-Series Servers could allow an unauthenticated, remote attacker to perform a man-in-the-middle attack against the affected device. The vulnerability is due to improper validation of the SSL...

Cisco Nexus Devices NX-OS Software Command-Line Interpreter Local Privilege Escalation Vulnerability

A local privilege escalation vulnerability in the command-line interpreter of Cisco Nexus devices could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system with user privileges. The vulnerability exists due to insufficient input sanitization of...

Cisco IOS Software UBR Devices IPv6 to IPv4 Subsystem Denial of Service Vulnerability

A vulnerability in the IPv6 to IPv4 subsystem of Cisco IOS Software could allow an unauthenticated, remote attacker to cause a standby Performance Routing Engine PRE to leak a small portion of memory on a targeted system, resulting in a denial of service DoS condition. The vulnerability is due to...

Cisco IOS Software TCL Script Interpreter Privilege Escalation Vulnerability

A vulnerability in the Tool Command Language TCL script interpreter of Cisco IOS Software could allow an authenticated, local attacker to escalate privileges from those of a non-privileged user to a privileged level 15 user. This would allow a non-privileged user to execute privileged commands...

Cisco FireSIGHT Management Center Dashboard Deletion Vulnerability

A vulnerability in management interface used to delete VPNs in the Cisco FireSIGHT Management Center could allow an authenticated, remote attacker with limited user permissions to delete another user's VPN dashboard. The vulnerability occurs because the product does not properly validate the...

Cisco NX-OS Software DHCP Options Command Injection Vulnerability

A vulnerability in DHCP code used with PowerOn Auto Provisioning POAP of Cisco NX-OS could allow an unauthenticated, adjacent attacker to inject arbitrary commands into the Cisco NX-OS device. The vulnerability is due to insufficient input validation of the DHCP options returned as a result of...

Cisco Wireless LAN Controller Task Name aaaQueueReader Denial of Service Vulnerability

A vulnerability in the web authentication feature of Cisco Wireless LAN Controller WLC could allow an unauthenticated, adjacent attacker to cause a denial of service DoS condition. The vulnerability is due to the improper handling of ill-formed passwords by the web authentication feature used by...

Cisco Unified Communications Domain Manager Administrative Interface Denial of Service Vulnerability

A vulnerability in Cisco Unified Communication Domain Manager UCDM Application Software version 10 could allow an unauthenticated, remote attacker to cause the web server to become unresponsive. As a result, connections to the Cisco UCDM GUI will not be possible during the attack. The vulnerabili...

Cisco Unified Communications Domain Manager Platform High CPU Utilization Denial of Service Vulnerability

A vulnerability in Cisco Unified Communications Domain Manager Platform Software could allow an unauthenticated, remote attacker to cause high CPU utilization, which may affect the performance of the system and make some services unavailable. The vulnerability is due to insufficient implementatio...

Cisco IronPort ESA Subject Header Length Denial of Service Vulnerability

A vulnerability in Subject header length processing on Cisco IronPort Email Security Appliance ESA could allow an unauthenticated, remote attacker to cause a limited denial of service DoS condition on an affected platform. The vulnerability occurs because the appliance does not limit the length o...

Cisco WebEx Meetings Server Arbitrary Download Vulnerability

A vulnerability in Cisco WebEx Meetings Server Cisco WMS could allow an unauthenticated, remote attacker to download arbitrary files to an affected device. The vulnerability is due to insufficient user-input validation. An attacker could exploit this vulnerability by submitting crafted URL reques...

Cisco Wide Area Application Services Partial Denial of Service Vulnerability

A vulnerability in Cisco Wide Area Application Services WAAS software, when configured with the SharePoint acceleration feature, could allow an unauthenticated, remote attacker to cause a reload of the application optimization handler. The vulnerability is due to incorrect parsing of SharePoint...

Cisco Unified Communications Manager CDR Management Vulnerability

A vulnerability in Call Detail Records CDR Management of Cisco Unified Communications Manager Cisco Unified CM could allow an authenticated, remote attacker to acquire sensitive information. The vulnerability is due to extraneous information included in the web page. An attacker could exploit thi...

Cisco IOS Software Network Address Translation Vulnerabilities

The Cisco IOS Software implementation of the Network Address Translation NAT feature contains two vulnerabilities when translating IP packets that could allow an unauthenticated, remote attacker to cause a denial of service condition. Cisco has released software updates that address these...

Cisco AsyncOS Software Code Execution Vulnerability

Cisco AsyncOS Software for Email Security Appliance ESA and Cisco Content Security Management Appliance SMA contain a vulnerability that could allow an authenticated remote attacker to execute arbitrary code with the privileges of the root user. Cisco has released software updates that address th...

Cisco Unified Communications Manager IPMA Cross-Site Scripting Vulnerability

A vulnerability in the Cisco IP Manager Assistant IPMA interface of Cisco Unified Communications Manager UCM could allow an unauthenticated, remote attacker to conduct a cross-site scripting XSS attack against a user of the web interface on the affected system. The vulnerability is due to...

Cisco Unified Computing System Baseboard Management Controller Arbitrary File Access Vulnerability

A vulnerability in the Baseboard Management Controller BMC local file editor of the Cisco Unified Computing System could allow an authenticated, local attacker to modify the contents of arbitrary files on the fabric interconnect. The vulnerability is due to a failure to properly sanitize user...

Multiple Vulnerabilities in Cisco Email Security Appliance

Cisco IronPort AsyncOS Software for Cisco Email Security Appliance is affected by the following vulnerabilities: Web Framework Authenticated Command Injection Vulnerability IronPort Spam Quarantine Denial of Service Vulnerability Management GUI Denial of Service Vulnerability Successful...

Cisco IPsec VPN Implementation Group Name Enumeration Information Disclosure Vulnerability

Multiple Cisco VPN devices contain a vulnerability that could allow an unauthenticated, remote attacker to gain access to sensitive information. The vulnerability exists due to unsafe handling of error response codes. An unauthenticated, remote attacker could exploit this vulnerability by sending...

Cisco IOS Software Network Address Translation Vulnerabilities

The Cisco IOS® Software Network Address Translation functionality contains three denial of service DoS vulnerabilities. The first vulnerability is in the translation of Session Initiation Protocol SIP packets, the second vulnerability in the translation of H.323 packets and the third vulnerabilit...

Multiple Vulnerabilities in Cisco ASA 5500 Series Adaptive Security Appliances

THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES TH...

Cisco Unified Communications Manager Denial of Service Vulnerabilities

THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES TH...

Cisco IOS Next Hop Resolution Protocol Vulnerability

THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES TH...

Denial of Service Vulnerability in Cisco Wide Area Application Services (WAAS) Software

THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES TH...

Crafted IP Option Vulnerability

THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES TH...

Continued Evolution of Persistence Mechanism Against Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense

On April 23, 2026, the U.S. Cybersecurity and Infrastructure Security Agency CISA issued an update to V1: Emergency Directive ED 25-03: Identify and Mitigate Potential Compromise of Cisco Devices...

Cisco Webex App Client-Side Remote Code Execution Vulnerability

A vulnerability in the custom URL parser of Cisco Webex App could allow an unauthenticated, remote attacker to persuade a user to download arbitrary files, which could allow the attacker to execute arbitrary commands on the host of the targeted user. This vulnerability is due to insufficient inpu...

Cisco Secure Client Carriage Return Line Feed Injection Vulnerability

A vulnerability in the SAML authentication process of Cisco Secure Client could allow an unauthenticated, remote attacker to conduct a carriage return line feed CRLF injection attack against a user. This vulnerability is due to insufficient validation of user-supplied input. An attacker could...