CISA Known Exploited Vulnerabilities (KEV)
To support the cybersecurity community and help network defenders stay ahead of active threat activity, CISA publishes cisa alert today updates and maintains the authoritative catalog of known exploited vulnerabilities. This KEV database highlights vulnerabilities that have been actively used in real-world attacks, making it an essential resource for security teams aiming to strengthen their defenses.
Organizations should incorporate the KEV catalog into their vulnerability management prioritization framework to ensure they address high-risk issues efficiently and stay aligned with the latest threat intelligence. With frequent updates — including entries marked as cisa kev added today — the catalog enables teams to react quickly to emerging exploitation trends. To streamline monitoring and improve response time, CVEfeed.io provides the freshest CISA KEV additions, delivering real-time visibility into newly identified exploited vulnerabilities and helping organizations maintain accurate, up-to-date security postures.
9.0
CVE-2019-1652 - Cisco Small Business Routers Improper Input Validation Vulnerability -
Action Due Mar 17, 2022 Target Vendor : Cisco
Description : A vulnerability in the web-based management interface of Cisco Small Business RV320 and RV325 Dual Gigabit WAN VPN Routers could allow an authenticated, remote attacker with administrative privileges on an affected device to execute arbitrary commands.
Action : Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes : https://nvd.nist.gov/vuln/detail/CVE-2019-1652
9.3
CVE-2019-1297 - Microsoft Excel Remote Code Execution Vulnerability -
Action Due Mar 17, 2022 Target Vendor : Microsoft
Description : A remote code execution vulnerability exists in Microsoft Excel when the software fails to properly handle objects in memory.
Action : Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes : https://nvd.nist.gov/vuln/detail/CVE-2019-1297
7.4
CVE-2018-8581 - Microsoft Exchange Server Privilege Escalation Vulnerability -
Action Due Mar 17, 2022 Target Vendor : Microsoft
Description : A privilege escalation vulnerability exists in Microsoft Exchange Server. An attacker who successfully exploited this vulnerability could attempt to impersonate any other user of the Exchange server.
Action : Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Known
Notes : https://nvd.nist.gov/vuln/detail/CVE-2018-8581
7.6
CVE-2018-8298 - ChakraCore Scripting Engine Type Confusion Vulnerability -
Action Due Mar 17, 2022 Target Vendor : ChakraCore
Description : The ChakraCore scripting engine contains a type confusion vulnerability which can allow for remote code execution.
Action : Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes : https://nvd.nist.gov/vuln/detail/CVE-2018-8298
7.1
CVE-2018-0180 - Cisco IOS Software Denial-of-Service Vulnerability -
Action Due Mar 17, 2022 Target Vendor : Cisco
Description : A vulnerability in the Login Enhancements (Login Block) feature of Cisco IOS Software could allow an unauthenticated, remote attacker to trigger a reload of an affected system, resulting in a denial of service (DoS) condition.
Action : Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes : https://nvd.nist.gov/vuln/detail/CVE-2018-0180
7.1
CVE-2018-0179 - Cisco IOS Software Denial-of-Service Vulnerability -
Action Due Mar 17, 2022 Target Vendor : Cisco
Description : A vulnerability in the Login Enhancements (Login Block) feature of Cisco IOS Software could allow an unauthenticated, remote attacker to trigger a reload of an affected system, resulting in a denial of service (DoS) condition.
Action : Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes : https://nvd.nist.gov/vuln/detail/CVE-2018-0179
8.6
CVE-2018-0174 - Cisco IOS Software and Cisco IOS XE Software Improper Input Validation Vulnerability -
Action Due Mar 17, 2022 Target Vendor : Cisco
Description : A vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow for denial-of-service (DoS).
Action : Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes : https://nvd.nist.gov/vuln/detail/CVE-2018-0174
8.6
CVE-2018-0173 - Cisco IOS and IOS XE Software Improper Input Validation Vulnerability -
Action Due Mar 17, 2022 Target Vendor : Cisco
Description : A vulnerability in the Cisco IOS Software and Cisco IOS XE Software function that restores encapsulated option 82 information in DHCP Version 4 (DHCPv4) packets can allow for denial-of-service (DoS).
Action : Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes : https://nvd.nist.gov/vuln/detail/CVE-2018-0173
8.6
CVE-2018-0172 - Cisco IOS and IOS XE Software Improper Input Validation Vulnerability -
Action Due Mar 17, 2022 Target Vendor : Cisco
Description : A vulnerability in the DHCP option 82 encapsulation functionality of Cisco IOS Software and Cisco IOS XE Software could allow for denial-of-service (DoS).
Action : Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes : https://nvd.nist.gov/vuln/detail/CVE-2018-0172
8.8
CVE-2018-0167 - Cisco IOS, XR, and XE Software Buffer Overflow Vulnerability -
Action Due Mar 17, 2022 Target Vendor : Cisco
Description : There is a buffer overflow vulnerability in the Link Layer Discovery Protocol (LLDP) subsystem of Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software which could allow an unauthenticated, adjacent attacker to cause a denial of service (DoS) condition or execute arbitrary code.
Action : Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes : https://nvd.nist.gov/vuln/detail/CVE-2018-0167
6.3
CVE-2018-0161 - Cisco IOS Software Resource Management Errors Vulnerability -
Action Due Mar 17, 2022 Target Vendor : Cisco
Description : A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software running on certain models of Cisco Catalyst Switches could allow an authenticated, remote attacker to cause a denial-of-service (DoS) condition.
Action : Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes : https://nvd.nist.gov/vuln/detail/CVE-2018-0161
8.6
CVE-2018-0158 - Cisco IOS and XE Software Internet Key Exchange Memory Leak Vulnerability -
Action Due Mar 17, 2022 Target Vendor : Cisco
Description : A vulnerability in the implementation of Internet Key Exchange Version 1 (IKEv1) functionality in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial-of-service (DoS) condition.
Action : Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes : https://nvd.nist.gov/vuln/detail/CVE-2018-0158
7.8
CVE-2018-0156 - Cisco IOS Software and Cisco IOS XE Software Smart Install Denial-of-Service Vulnerability -
Action Due Mar 17, 2022 Target Vendor : Cisco
Description : A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial-of-service (DoS) condition.
Action : Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes : https://nvd.nist.gov/vuln/detail/CVE-2018-0156
8.6
CVE-2018-0155 - Cisco Catalyst Bidirectional Forwarding Detection Denial-of-Service Vulnerability -
Action Due Mar 17, 2022 Target Vendor : Cisco
Description : A vulnerability in the Bidirectional Forwarding Detection (BFD) offload implementation of Cisco Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches could allow an unauthenticated, remote attacker to cause a crash of the iosd process, causing a denial-of-service (DoS) condition.
Action : Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes : https://nvd.nist.gov/vuln/detail/CVE-2018-0155
7.8
CVE-2018-0154 - Cisco IOS Software Integrated Services Module for VPN Denial-of-Service Vulnerability -
Action Due Mar 17, 2022 Target Vendor : Cisco
Description : A vulnerability in the crypto engine of the Cisco Integrated Services Module for VPN (ISM-VPN) running Cisco IOS Software could allow an unauthenticated, remote attacker to cause a denial-of-service (DoS) condition.
Action : Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes : https://nvd.nist.gov/vuln/detail/CVE-2018-0154
10.0
CVE-2018-0151 - Cisco IOS Software and Cisco IOS XE Software Quality of Service Remote Code Execution Vulnerability -
Action Due Mar 17, 2022 Target Vendor : Cisco
Description : A vulnerability in the quality of service (QoS) subsystem of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or execute arbitrary code with elevated privileges.
Action : Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes : https://nvd.nist.gov/vuln/detail/CVE-2018-0151
9.3
CVE-2017-8540 - Microsoft Malware Protection Engine Improper Restriction of Operations Vulnerability -
Action Due Mar 24, 2022 Target Vendor : Microsoft
Description : The Microsoft Malware Protection Engine running on Microsoft Forefront and Microsoft Defender on Microsoft Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, and 1703, and Windows Server 2016, Microsoft Exchange Server 2013 and 2016, does not properly scan a specially crafted file leading to memory corruption. aka "Microsoft Malware Protection Engine Remote Code Execution Vulnerability".
Action : Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes : https://nvd.nist.gov/vuln/detail/CVE-2017-8540
9.0
CVE-2017-6744 - Cisco IOS Software SNMP Remote Code Execution Vulnerability -
Action Due Mar 24, 2022 Target Vendor : Cisco
Description : The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS 1 contains a vulnerability that could allow an authenticated, remote attacker to remotely execute code on an affected system or cause an affected system to reload. An attacker could exploit these vulnerabilities by sending a crafted SNMP packet to an affected system via IPv4 or IPv6.
Action : Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes : https://nvd.nist.gov/vuln/detail/CVE-2017-6744
9.0
CVE-2017-6743 - Cisco IOS and IOS XE Software SNMP Remote Code Execution Vulnerability -
Action Due Mar 24, 2022 Target Vendor : Cisco
Description : The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS and IOS XE contains a vulnerability that could allow an authenticated, remote attacker to remotely execute code.
Action : Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes : https://nvd.nist.gov/vuln/detail/CVE-2017-6743
9.0
CVE-2017-6740 - Cisco IOS and IOS XE Software SNMP Remote Code Execution Vulnerability -
Action Due Mar 24, 2022 Target Vendor : Cisco
Description : The Simple Network Management Protocol (SNMP) subsystem of Cisco IOS and IOS XE contains a vulnerability that could allow an authenticated, remote attacker to remotely execute code on an affected system or cause an affected system to reload.
Action : Apply updates per vendor instructions.
Known To Be Used in Ransomware Campaigns? : Unknown
Notes : https://nvd.nist.gov/vuln/detail/CVE-2017-6740