Vulnerabilities (CVE)

Filtered by vendor Cisco Subscribe
Total 6576 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2026-20025 1 Cisco 2 Adaptive Security Appliance Software, Firepower Threat Defense Software 2026-06-05 N/A 6.8 MEDIUM
A vulnerability in the OSPF protocol of Cisco Secure Firewall ASA Software and Cisco Secure FTD Software could allow an authenticated, adjacent attacker to cause an affected device to reload unexpectedly, resulting in a DoS condition. To exploit this vulnerability, the attacker must have the OSPF secret key. This vulnerability is due to insufficient input validation when processing OSPF link-state update (LSU) packets. An attacker could exploit this vulnerability by sending crafted OSPF LSU packets. A successful exploit could allow the attacker to corrupt the heap, causing the device to reload, resulting in a DoS condition.
CVE-2026-20016 1 Cisco 2 Adaptive Security Appliance Software, Firepower Threat Defense Software 2026-06-05 N/A 6.0 MEDIUM
A vulnerability in the Cisco FXOS Software CLI feature for Cisco Secure Firewall ASA Software and Secure FTD Software could allow an authenticated, local attacker to execute arbitrary commands on the underlying operating system with root-level privileges. To exploit this vulnerability, the attacker must have valid administrative credentials on an affected device. This vulnerability is due to insufficient input validation of user-supplied command arguments. An attacker could exploit this vulnerability by submitting crafted input for specific CLI commands. A successful exploit could allow the attacker to execute commands on the underlying operating system with root-level privileges.
CVE-2026-20069 1 Cisco 2 Adaptive Security Appliance Software, Firepower Threat Defense Software 2026-06-02 N/A 4.3 MEDIUM
A vulnerability in the VPN web services component of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct browser-based attacks against users of an affected device. This vulnerability is due to improper validation of HTTP requests. An attacker could exploit this vulnerability by persuading a user to visit a website that is designed to pass malicious HTTP requests to a device that is running Cisco Secure Firewall ASA Software or Cisco Secure FTD Software and has web services endpoints supporting VPN features enabled. A successful exploit could allow the attacker to reflect malicious input from the affected device to the browser that is in use and conduct browser-based attacks, including cross-site scripting (XSS) attacks. The attacker is not able to directly impact the affected device.
CVE-2016-2183 6 Cisco, Nodejs, Openssl and 3 more 9 Content Security Management Appliance, Node.js, Openssl and 6 more 2026-05-29 5.0 MEDIUM 7.5 HIGH
The DES and Triple DES ciphers, as used in the TLS, SSH, and IPSec protocols and other protocols and products, have a birthday bound of approximately four billion blocks, which makes it easier for remote attackers to obtain cleartext data via a birthday attack against a long-duration encrypted session, as demonstrated by an HTTPS session using Triple DES in CBC mode, aka a "Sweet32" attack.
CVE-2021-44832 5 Apache, Cisco, Debian and 2 more 22 Log4j, Cloudcenter, Debian Linux and 19 more 2026-05-29 8.5 HIGH 6.6 MEDIUM
Apache Log4j2 versions 2.0-beta7 through 2.17.0 (excluding security fix releases 2.3.2 and 2.12.4) are vulnerable to a remote code execution (RCE) attack when a configuration uses a JDBC Appender with a JNDI LDAP data source URI when an attacker has control of the target LDAP server. This issue is fixed by limiting JNDI data source names to the java protocol in Log4j2 versions 2.17.1, 2.12.4, and 2.3.2.
CVE-1999-0524 9 Apple, Cisco, Hp and 6 more 12 Mac Os X, Macos, Ios and 9 more 2026-05-28 2.1 LOW 4.0 MEDIUM
ICMP information such as (1) netmask and (2) timestamp is allowed from arbitrary hosts.
CVE-2022-20920 1 Cisco 2 Ios, Ios Xe 2026-05-27 N/A 7.7 HIGH
A vulnerability in the SSH implementation of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker to cause an affected device to reload. This vulnerability is due to improper handling of resources during an exceptional situation. An attacker could exploit this vulnerability by continuously connecting to an affected device and sending specific SSH requests. A successful exploit could allow the attacker to cause the affected device to reload.
CVE-2026-5944 1 Cisco 1 Intersight Device Connector 2026-05-18 8.5 HIGH 8.2 HIGH
An improper access control vulnerability exists in the Cisco Intersight Device Connector for Nutanix Prism Central. The service exposes an API passthrough endpoint on TCP port 7373 that is accessible within the network scope of the deployment environment without authentication. An unauthenticated attacker with network access can exploit this vulnerability by sending crafted requests to the exposed endpoint to enumerate cluster metadata, including virtual machine information and cluster configuration details. While the API primarily supports read-only operations, it also allows certain cluster maintenance workflows to be invoked. Although this vulnerability does not allow persistent modification of system configurations or access to credentials or sensitive user data, successful exploitation may result in disruption of active workloads, leading to loss of service availability within the affected environment.
CVE-2026-20182 1 Cisco 2 Catalyst Sd-wan Manager, Sd-wan Vsmart Controller 2026-05-15 N/A 10.0 CRITICAL
May 2026: This security advisory provides the details and fix information for a vulnerability that was discovered and fixed after the was disclosed in February 2026. This new advisory is for a new vulnerability in the control connection handshaking. The section of this advisory includes Show Control Connections guidance to help with system checks.  A vulnerability in the peering authentication in Cisco Catalyst SD-WAN Controller, formerly SD-WAN vSmart, and Cisco Catalyst SD-WAN Manager, formerly SD-WAN vManage, could allow an unauthenticated, remote attacker to bypass authentication and obtain administrative privileges on an affected system. This vulnerability exists because the peering authentication mechanism in an affected system is not working properly. An attacker could exploit this vulnerability by sending crafted requests to the affected system. A successful exploit could allow the attacker to log in to an affected Cisco Catalyst SD-WAN Controller as an internal, high-privileged, non-root user account. Using this account, the attacker could access NETCONF, which would then allow the attacker to manipulate network configuration for the SD-WAN fabric.
CVE-2017-6610 1 Cisco 1 Adaptive Security Appliance Software 2026-05-13 6.8 MEDIUM 7.7 HIGH
A vulnerability in the Internet Key Exchange Version 1 (IKEv1) XAUTH code of Cisco ASA Software could allow an authenticated, remote attacker to cause a reload of an affected system. The vulnerability is due to insufficient validation of the IKEv1 XAUTH parameters passed during an IKEv1 negotiation. An attacker could exploit this vulnerability by sending crafted parameters. Note: Only traffic directed to the affected system can be used to exploit this vulnerability. This vulnerability only affects systems configured in routed firewall mode and in single or multiple context mode. This vulnerability can be triggered by IPv4 or IPv6 traffic. A valid IKEv1 Phase 1 needs to be established to exploit this vulnerability, which means that an attacker would need to have knowledge of a pre-shared key or have a valid certificate for phase 1 authentication. This vulnerability affects Cisco ASA Software running on the following products: Cisco ASA 1000V Cloud Firewall, Cisco ASA 5500 Series Adaptive Security Appliances, Cisco ASA 5500-X Series Next-Generation Firewalls, Cisco ASA Services Module for Cisco Catalyst 6500 Series Switches and Cisco 7600 Series Routers, Cisco Adaptive Security Virtual Appliance (ASAv), Cisco ASA for Firepower 9300 Series, Cisco ISA 3000 Industrial Security Appliance. Fixed versions: 9.1(7.7) 9.2(4.11) 9.4(4) 9.5(3) 9.6(1.5). Cisco Bug IDs: CSCuz11685.
CVE-2017-6690 1 Cisco 2 Asr 5000, Asr 5000 Software 2026-05-13 4.0 MEDIUM 4.9 MEDIUM
A vulnerability in the file check operation of Cisco ASR 5000 Series Aggregated Services Routers running the Cisco StarOS operating system could allow an authenticated, remote attacker to overwrite or modify arbitrary files on an affected system. More Information: CSCvd73726. Known Affected Releases: 21.0.v0.65839 21.3.M0.67005. Known Fixed Releases: 21.4.A0.67087 21.4.A0.67079 21.4.A0.67013 21.3.M0.67084 21.3.M0.67077 21.3.M0.66994 21.3.J0.66993 21.1.v0.67082 21.1.V0.67083.
CVE-2017-12283 1 Cisco 4 Aironet 3800 Firmware, Aironet 3800e, Aironet 3800i and 1 more 2026-05-13 2.9 LOW 6.1 MEDIUM
A vulnerability in the handling of 802.11w Protected Management Frames (PAF) by Cisco Aironet 3800 Series Access Points could allow an unauthenticated, adjacent attacker to terminate a valid user connection to an affected device, aka Denial of Service. The vulnerability exists because the affected device does not properly validate 802.11w PAF disassociation and deauthentication frames that it receives. An attacker could exploit this vulnerability by sending a spoofed 802.11w PAF frame from a valid, authenticated client on an adjacent network to an affected device. A successful exploit could allow the attacker to terminate a single valid user connection to the affected device. This vulnerability affects Access Points that are configured to run in FlexConnect mode. Cisco Bug IDs: CSCvc20627.
CVE-2017-3850 1 Cisco 2 Ios, Ios Xe 2026-05-13 7.1 HIGH 5.9 MEDIUM
A vulnerability in the Autonomic Networking Infrastructure (ANI) feature of Cisco IOS Software (15.4 through 15.6) and Cisco IOS XE Software (3.7 through 3.18, and 16) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to incomplete input validation on certain crafted packets. An attacker could exploit this vulnerability by sending a crafted IPv6 packet to a device that is running a Cisco IOS Software or Cisco IOS XE Software release that supports the ANI feature. A device must meet two conditions to be affected by this vulnerability: (1) the device must be running a version of Cisco IOS Software or Cisco IOS XE Software that supports ANI (regardless of whether ANI is configured); and (2) the device must have a reachable IPv6 interface. An exploit could allow the attacker to cause the affected device to reload. Cisco Bug IDs: CSCvc42729.
CVE-2017-3800 1 Cisco 1 Email Security Appliance 2026-05-13 5.0 MEDIUM 5.8 MEDIUM
A vulnerability in the content scanning engine of Cisco AsyncOS Software for Cisco Email Security Appliances (ESA) could allow an unauthenticated, remote attacker to bypass configured message or content filters on the device. Affected Products: This vulnerability affects all releases prior to the first fixed release of Cisco AsyncOS Software for Cisco Email Security Appliances, both virtual and hardware appliances, if the software is configured to apply a message filter or content filter to incoming email attachments. The vulnerability is not limited to any specific rules or actions for a message filter or content filter. More Information: CSCuz16076. Known Affected Releases: 9.7.1-066 9.7.1-HP2-207 9.8.5-085. Known Fixed Releases: 10.0.1-083 10.0.1-087.
CVE-2017-12277 1 Cisco 6 Firepower 4110 Next-generation Firewall, Firepower 4120 Next-generation Firewall, Firepower 4140 Next-generation Firewall and 3 more 2026-05-13 9.0 HIGH 8.8 HIGH
A vulnerability in the Smart Licensing Manager service of the Cisco Firepower 4100 Series Next-Generation Firewall (NGFW) and Firepower 9300 Security Appliance could allow an authenticated, remote attacker to inject arbitrary commands that could be executed with root privileges. The vulnerability is due to insufficient input validation of certain Smart Licensing configuration parameters. An authenticated attacker could exploit the vulnerability by configuring a malicious URL within the affected feature. A successful exploit could allow the attacker to execute arbitrary commands with root privileges. This vulnerability affects the following Cisco Firepower Security products running FX-OS code trains 1.1.3, 1.1.4, and 2.0.1 (versions 2.1.1, 2.2.1, and 2.2.2 are not affected): Firepower 4100 Series Next-Generation Firewall and Firepower 9300 Security Appliance. Cisco Bug IDs: CSCvb86863.
CVE-2017-3811 1 Cisco 1 Webex Meetings Server 2026-05-13 4.0 MEDIUM 6.5 MEDIUM
An XML External Entity vulnerability in Cisco WebEx Meetings Server could allow an authenticated, remote attacker to have read access to part of the information stored in the affected system. More Information: CSCvc39165. Known Affected Releases: 2.6. Known Fixed Releases: 2.7.1.2054.
CVE-2017-12212 1 Cisco 1 Unity Connection 2026-05-13 4.3 MEDIUM 6.1 MEDIUM
A vulnerability in the web framework of Cisco Unity Connection could allow an unauthenticated, remote attacker to conduct a reflected cross-site scripting (XSS) attack against a user of the web interface of an affected system. The vulnerability is due to insufficient input validation of certain parameters that are passed to the affected software via the HTTP GET and HTTP POST methods. An attacker who can convince a user to follow an attacker-supplied link could execute arbitrary script or HTML code in the user's browser in the context of an affected site. Known Affected Releases 10.5(2). Cisco Bug IDs: CSCvf25345.
CVE-2015-6358 1 Cisco 48 Pvc2300, Pvc2300 Firmware, Rtp300 and 45 more 2026-05-13 4.3 MEDIUM 5.9 MEDIUM
Multiple Cisco embedded devices use hardcoded X.509 certificates and SSH host keys embedded in the firmware, which allows remote attackers to defeat cryptographic protection mechanisms and conduct man-in-the-middle attacks by leveraging knowledge of these certificates and keys from another installation, aka Bug IDs CSCuw46610, CSCuw46620, CSCuw46637, CSCuw46654, CSCuw46665, CSCuw46672, CSCuw46677, CSCuw46682, CSCuw46705, CSCuw46716, CSCuw46979, CSCuw47005, CSCuw47028, CSCuw47040, CSCuw47048, CSCuw47061, CSCuw90860, CSCuw90869, CSCuw90875, CSCuw90881, CSCuw90899, and CSCuw90913.
CVE-2017-9479 1 Cisco 2 Dpc3939, Dpc3939 Firmware 2026-05-13 10.0 HIGH 9.8 CRITICAL
The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices allows remote attackers to execute arbitrary commands as root by leveraging local network access and connecting to the syseventd server, as demonstrated by copying configuration data into a readable filesystem.
CVE-2017-12255 1 Cisco 1 Unified Computing System 2026-05-13 7.2 HIGH 6.7 MEDIUM
A vulnerability in the CLI of Cisco UCS Central Software could allow an authenticated, local attacker to gain shell access. The vulnerability is due to insufficient input validation of commands entered in the CLI, aka a Restricted Shell Break Vulnerability. An attacker could exploit this vulnerability by entering a specific command with crafted arguments. An exploit could allow the attacker to gain shell access to the underlying system. Cisco Bug IDs: CSCve70762.