5246 matches found
Cisco IOS Software Internet Key Exchange Version 2 Denial of Service Vulnerability
A vulnerability in the Internet Key Exchange Version 2 IKEv2 module of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a reload of the affected device that would lead to a denial of service DoS condition. The vulnerability is due to how an...
Cisco Adaptive Security Appliance Phone Proxy sec_db Race Condition Vulnerability
A vulnerability in the TFTP request function of the Phone Proxy feature of the Cisco Adaptive Security Appliance ASA could allow an unauthenticated, remote attacker to pass traffic from an untrusted phone through the ASA. The vulnerability is due to a limitation in processing the TFTP request for...
Cisco Unified Computing System Fabric Interconnect Arbitrary File Creation Vulnerability
A vulnerability in the fabric interconnect of the Cisco Unified Computing System could allow an authenticated, local attacker to execute commands with elevated privileges. The vulnerability is due to improper filtering of user-supplied parameters. An attacker could exploit this vulnerability by...
Cisco Unified Computing System Fabric Interconnect Arbitrary File Access Vulnerability
A vulnerability in the local file editor of the Cisco Unified Computing System fabric interconnect could allow an authenticated, local attacker to access arbitrary files on the userland filesystem with root privileges. The vulnerability is due to improper input filtering . An attacker could explo...
Cisco Unified Computing System Serial over LAN Static Private Key Vulnerability
A vulnerability in the Cisco Unified Computing System Serial over LAN SoL implementation could allow an unauthenticated, remote attacker to perform a man-in-the-middle MITM attack. The vulnerability occurs because the Board Management Controller BMC uses a hard-coded private key. An attacker coul...
Cisco IOS Software Network Address Translation Vulnerabilities
The Cisco IOS Software Network Address Translation NAT feature contains two denial of service DoS vulnerabilities in the translation of IP packets. The vulnerabilities are caused when packets in transit on the vulnerable device require translation. Cisco has released software updates that address...
Cisco IOS XR Software SSH Denial of Service Vulnerability
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Cisco Unified Communications Manager and Presence Server Unauthorized Access 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 Security Monitoring, Analysis and Response System and Adaptive Security Device Manager Secure Communication Vulnerability
Cisco Security Monitoring, Analysis and Response System versions prior to 4.2.3 and Cisco Adaptive Security Device Manager versions prior to 5.22.1 contain a vulnerability that could allow an unauthenticated, remote attacker to impersonate a device managed by the system. The vulnerability exists...
Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability
May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and fixed after the Cisco Catalyst SD-WAN Controller Authentication Bypass Vulnerability...
Cisco IOS XE Software Secure Copy Protocol Server Denial of Service Vulnerability
A vulnerability in the Secure Copy Protocol SCP server feature of Cisco IOS XE Software could allow an authenticated, local attacker with low privileges to cause a denial of service DoS condition on an affected device. This vulnerability is due to improper handling of a malformed SCP request. An...
Cisco Nexus 9000 Series Fabric Switches in ACI Mode SNMP Denial of Service Vulnerability
A vulnerability in the Simple Network Management Protocol SNMP subsystem of Cisco Nexus 9000 Series Fabric Switches in ACI mode could allow an authenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability is due to improper processing when...
Cisco Secure Firewall Adaptive Security Appliance Software and Secure Firewall Threat Defense Software VPN Web Server Unauthorized Access Vulnerability
Update: On November 5, 2025, Cisco became aware of a new attack variant against devices running Cisco Secure ASA Software or Cisco Secure FTD Software releases that are affected by CVE-2025-20333 and CVE-2025-20362. This attack can cause unpatched devices to unexpectedly reload, leading to denial...
Cisco Secure Firewall Adaptive Security Appliance Software and Secure Firewall Threat Defense Software VPN Web Server Remote Code Execution Vulnerability
Update: On November 5, 2025, Cisco became aware of a new attack variant against devices running Cisco Secure ASA Software or Cisco Secure FTD Software releases that are affected by CVE-2025-20333 and CVE-2025-20362. This attack can cause unpatched devices to unexpectedly reload, leading to denial...
Cisco IOS and IOS XE Software TACACS+ Authentication Bypass Vulnerability
A vulnerability in the implementation of the TACACS+ protocol in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to view sensitive data or bypass authentication. This vulnerability exists because the system does not properly check whether the required...
Cisco Unified Communications Products Command Injection Vulnerability
A vulnerability in the CLI of multiple Cisco Unified Communications products could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system of an affected device as the root user. This vulnerability is due to improper validation of user-supplied...
Cisco NX-OS Software External Border Gateway Protocol Denial of Service Vulnerability
A vulnerability in the External Border Gateway Protocol eBGP implementation of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability exists because eBGP traffic is mapped to a shared hardware...
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software AnyConnect Access Control List Bypass Vulnerabilities
Multiple vulnerabilities in the per-user-override feature of Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to bypass a configured access control list ACL and allow traffic that should be denied to flo...
Multiple Cisco Products Snort FTP Inspection Bypass Vulnerability
Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass the configured policies on an affected system. This vulnerability is due to a flaw in the FTP module of the Snort detection engine. An attacker coul...
Cisco Firepower Management Center Software Command Injection Vulnerability
A vulnerability in the web services interface of Cisco Firepower Management Center FMC Software could allow an authenticated, remote attacker to execute certain unauthorized configuration commands on a Firepower Threat Defense FTD device that is managed by the FMC Software. This vulnerability is...
Cisco Unified Communications Manager Denial of Service Vulnerability
A vulnerability in the Administrative XML Web Service AXL API of Cisco Unified Communications Manager Unified CM and Cisco Unified Communications Manager Session Management Edition Unified CM SME could allow an authenticated, remote attacker to cause a denial of service DoS condition on an affect...
Cisco Small Business 200, 300, and 500 Series Switches Web-Based Management Stored Cross-Site Scripting Vulnerability
A vulnerability in the web-based management interface of Cisco Small Business 200 Series Smart Switches, Cisco Small Business 300 Series Managed Switches, and Cisco Small Business 500 Series Stackable Managed Switches could allow an authenticated, remote attacker to conduct a stored cross-site...
Cisco Firepower 4100 Series, Firepower 9300 Security Appliances, and UCS Fabric Interconnects Command Injection Vulnerability
A vulnerability in the CLI of Cisco Firepower 4100 Series, Cisco Firepower 9300 Security Appliances, and Cisco UCS 6200, 6300, 6400, and 6500 Series Fabric Interconnects could allow an authenticated, local attacker to inject unauthorized commands. This vulnerability is due to insufficient input...
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SSL/TLS Client Denial of Service Vulnerability
A vulnerability in the SSL/TLS client of Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an authenticated, remote attacker to cause a denial of service DoS condition on an affected device. This vulnerability is due to improper memory...
Cisco Email Security Appliance, Cisco Secure Email and Web Manager, and Cisco Secure Web Appliance Next Generation Management Vulnerabilities
Multiple vulnerabilities in the next-generation UI management interface for Cisco Email Security Appliance ESA, Cisco Secure Email and Web Manager, and Cisco Secure Web Appliance, formerly known as Cisco Web Security Appliance WSA, could allow an attacker to elevate privileges or to conduct a SQL...
Cisco Nexus Dashboard Unauthorized Access Vulnerabilities
Multiple vulnerabilities in Cisco Nexus Dashboard could allow an unauthenticated, remote attacker to execute arbitrary commands, read or upload container image files, or perform a cross-site request forgery attack. For more information about these vulnerabilities, see the Details "details" sectio...
Cisco Vision Dynamic Signage Director Reflected Cross-Site Scripting Vulnerability
A vulnerability in the web-based management interface of Cisco Vision Dynamic Signage Director could allow an unauthenticated, remote attacker to conduct a cross-site scripting XSS attack against a user of the interface on an affected device. This vulnerability is due to insufficient validation o...
Cisco SD-WAN vManage Authorization Bypass Vulnerability
A vulnerability in Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to bypass authorization checking and gain restricted access to the configuration information of an affected system. This vulnerability exists because the affected software has insufficient input...
Cisco SD-WAN vManage Cypher Query Language Injection Vulnerability
A vulnerability in the web-based management interface of Cisco SD-WAN vManage Software could allow an authenticated, remote attacker to conduct Cypher query language injection attacks on an affected system. The vulnerability is due to insufficient input validation by the web-based management...
Multiple Cisco Products Snort TCP Fast Open File Policy Bypass Vulnerability
Multiple Cisco products are affected by a vulnerability with TCP Fast Open TFO when used in conjunction with the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured file policy for HTTP. The vulnerability is due to incorrect detection of the HTTP...
Cisco IOS and IOS XE Software Information Disclosure Vulnerability
A vulnerability in the CLI parser of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, local attacker to access files from the flash: filesystem. The vulnerability is due to insufficient application of restrictions during the execution of a specific command. An attacker...
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...
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...
Cisco Data Center Network Manager Read File Path Traversal Vulnerability
A vulnerability in a specific REST API of Cisco Data Center Network Manager DCNM Software could allow an authenticated, remote attacker to conduct directory traversal attacks on an affected device. The vulnerability is due to insufficient validation of user-supplied input to the API. An attacker...
Cisco Data Center Network Manager Path Traversal Vulnerability
A vulnerability in a certain REST API endpoint of Cisco Data Center Network Manager DCNM Software could allow an authenticated, remote attacker to perform a path traversal attack on an affected device. The vulnerability is due to insufficient path restriction enforcement. An attacker could exploi...
Cisco AnyConnect Secure Mobility Client for Windows Denial of Service Vulnerability
A vulnerability in the interprocess communication IPC channel of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to cause a denial of service DoS condition on an affected device. To exploit this vulnerability, the attacker would need to have valid...
Cisco AMP for Endpoints and ClamAV Privilege Escalation Vulnerability
A vulnerability in the endpoint software of Cisco AMP for Endpoints and Clam AntiVirus could allow an authenticated, local attacker to cause the running software to delete arbitrary files on the system. The vulnerability is due to a race condition that could occur when scanning malicious files. A...
Cisco IOS XE Software Web UI Remote Code Execution Vulnerability
A vulnerability in the web UI of Cisco IOS XE Software could allow an authenticated, remote attacker with administrative privileges to execute arbitrary code with root privileges on the underlying Linux shell. The vulnerability is due to improper validation of user-supplied input. An attacker cou...
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Information Disclosure Vulnerability
A vulnerability in the web services interface of Cisco Adaptive Security Appliance ASA Software and Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to retrieve memory contents on an affected device, which could lead to the disclosure of confidential...
Cisco Firepower Threat Defense Software SSL/TLS URL Category Bypass Vulnerability
A vulnerability in the Transport Layer Security version 1.3 TLS 1.3 policy with URL category functionality for Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to bypass a configured TLS 1.3 policy to block traffic for a specific URL. The vulnerability i...
Cisco Firepower Device Manager On-Box Software Arbitrary File Overwrite Vulnerability
A vulnerability in Cisco Firepower Device Manager FDM On-Box software could allow an authenticated, remote attacker to overwrite arbitrary files on the underlying operating system of an affected device. The vulnerability is due to improper input validation. An attacker could exploit this...
Cisco Firepower Device Manager On-Box Software XML Parsing Vulnerability
A vulnerability in the XML parser code of Cisco Firepower Device Manager On-Box software could allow an authenticated, remote attacker to cause an affected system to become unstable or reload. The vulnerability is due to insufficient hardening of the XML parser configuration. An attacker could...
Cisco Wireless LAN Controller 802.11 Generic Advertisement Service Denial of Service Vulnerability
A vulnerability in the 802.11 Generic Advertisement Service GAS frame processing function of Cisco Wireless LAN Controller WLC Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service DoS. The vulnerability is due to incomple...
Cisco Video Surveillance Manager Web-Based Management Interface Information Disclosure Vulnerability
A vulnerability in the web-based management interface of Cisco Video Surveillance Manager could allow an unauthenticated, remote attacker to access sensitive information. The vulnerability is due to improper validation of parameters handled by the web-based management interface. An attacker could...
Cisco Application Policy Infrastructure Controller Web-Based Management Interface Cross-Site Scripting Vulnerability
A vulnerability in the web-based management interface of Cisco Application Policy Infrastructure Controller APIC could allow an authenticated, remote attacker to conduct a cross-site scripting XSS attack against a user of the web-based management interface of an affected device. The vulnerability...
Cisco Expressway Series Directory Traversal Vulnerability
A vulnerability in the management web interface of Cisco Expressway Series could allow an authenticated, remote attacker to perform a directory traversal attack against an affected device. The vulnerability is due to insufficient input validation on the web interface. An attacker could exploit th...
Cisco IOS and IOS XE Software SM-1T3/E3 Service Module Denial of Service Vulnerability
A vulnerability in the SM-1T3/E3 firmware on Cisco Second Generation Integrated Services Routers ISR G2 and the Cisco 4451-X Integrated Services Router ISR4451-X could allow an unauthenticated, remote attacker to cause the ISR G2 Router or the SM-1T3/E3 module on the ISR4451-X to reload, resultin...
Cisco 5000 Series Enterprise Network Compute System and Cisco UCS E-Series Servers BIOS Authentication Bypass Vulnerability
A vulnerability in BIOS authentication management of Cisco 5000 Series Enterprise Network Compute System and Cisco Unified Computing UCS E-Series Servers could allow an unauthenticated, local attacker to bypass the BIOS authentication and execute actions as an unprivileged user. The vulnerability...
Cisco IOS XE Software Authentication, Authorization, and Accounting Login Authentication Remote Code Execution Vulnerability
A vulnerability in the authentication, authorization, and accounting AAA security services of Cisco IOS XE Software could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device or cause an affected device to reload, resulting in a denial of service DoS condition...
Cisco 5500 and 8500 Series Wireless LAN Controller Information Disclosure Vulnerability
A vulnerability in the REST API of Cisco 5500 and 8500 Series Wireless LAN Controller WLC Software could allow an unauthenticated, remote attacker to view system information that under normal circumstances should be prohibited. The vulnerability is due to incomplete input and validation checking...