FBI-CISA Joint Advisory on Compromise of Microsoft Exchange Server

CISA and the Federal Bureau of Investigation FBI have released a Joint Cybersecurity Advisory CSA to address recently disclosed vulnerabilities in Microsoft Exchange Server. CISA and FBI assess that adversaries could exploit these vulnerabilities to compromise networks, steal information, encrypt...

Microsoft Releases March 2021 Security Updates

Microsoft has released updates to address multiple vulnerabilities in Microsoft software. A remote attacker can exploit some of these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review Microsoft’s March 2021 Security Update Summary and...

F5 Security Advisory for RCE Vulnerabilities in BIG-IP, BIG-IQ

F5 has released a security advisory to address remote code execution RCE vulnerabilities—CVE-2021-22986, CVE-2021-22987—impacting BIG-IP and BIG-IQ devices. An attacker could exploit these vulnerabilities to take control of an affected system. CISA encourages users and administrators review the F...

Adobe Releases Security Updates

Adobe has released security updates to address vulnerabilities in multiple Adobe products. An attacker could exploit some of these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review the following Adobe Security Bulletins and apply the necessa...

Apple Releases Security Updates

Apple has released security updates to address vulnerabilities in multiple products. An attacker could exploit some of these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review the Apple security pages for the following products and apply the...

SAP Releases March 2021 Security Updates

SAP has released security updates to address vulnerabilities affecting multiple products. An attacker could exploit some of these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review the SAP Security Notes for March 2021 and apply the necessary...

VMware Releases Security Update

VMware has released a security update to address a vulnerability in View Planner. An attacker could exploit this vulnerability to take control of an affected system. CISA encourages users and administrators to review VMware Security Advisory VMSA-2021-0003 and apply the necessary update. This...

Update to Alert on Mitigating Microsoft Exchange Server Vulnerabilities

CISA is aware of threat actors using open source tools to search for vulnerable Microsoft Exchange Servers and advises entities to investigate for signs of a compromise from at least September 1, 2020. CISA has updated the Alert on the Microsoft Exchange server vulnerabilities with additional...

Cisco Releases Security Updates

Cisco has released security updates to address a vulnerability in multiple Cisco products. An attacker could exploit this vulnerability to cause a denial-of-service condition. For updates addressing lower severity vulnerabilities, see the Cisco Security Advisories page. CISA encourages users and...

Google Releases Security Updates for Chrome

Google has released Chrome version 89.0.4389.72 for Windows, Mac, and Linux. This version addresses vulnerabilities that an attacker could exploit to take control of an affected system. CISA encourages users and administrators to review the Chrome Release Note and apply the necessary updates. Thi...

Apache Releases Security Advisory for Tomcat

The Apache Software Foundation has released a security advisory to address a vulnerability in multiple versions of Apache Tomcat 9.0. An attacker could exploit this vulnerability to access sensitive information. CISA encourages users and administrators to review the Apache security advisory for...

NSA Releases Guidance on Zero Trust Security Model

The National Security Agency NSA has released Cybersecurity Information Sheet: Embracing a Zero Trust Security Model, which provides information about, and recommendations for, implementing Zero Trust within networks. The Zero Trust security model is a coordinated system management strategy that...

Cisco Releases Security Updates 

Cisco has released security updates to address vulnerabilities in Cisco products. An attacker could exploit some of these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review the following Cisco Advisories and apply the necessary updates: Cisco...

VMware Releases Multiple Security Updates

VMware has released security updates to address multiple vulnerabilities—CVE-2021-21972, CVE-2021-21973, CVE-2021-21974—in ESXi, vCenter Server, and Cloud Foundation. A remote attacker could exploit some of these vulnerabilities to take control of an affected system. CISA encourages users and...

SonicWall Releases Additional Patches

SonicWall has released firmware patches for SMA 100 series products in an update to its previous alert from February 3, 2021. A remote attacker could exploit a vulnerability in versions of SMA 10 prior to 10.2.0.5-29sv to take control of an affected system. CISA encourages users and administrator...

OTRS AG Survey Cross-Site Scripting Vulnerability

OTRS AG Survey is a Perl-based customer survey appliance from OTRS Germany. The tool is intended for use in sending e-mails to customers after a ticket has been closed. A cross-site scripting vulnerability exists in OTRS AG Survey that can be exploited by an attacker to execute malicious code in...

Cisco Releases Security Updates for AnyConnect Secure Mobility Client

Cisco has released security updates to address a vulnerability in Cisco AnyConnect Secure Mobility Client. An attacker could exploit this vulnerability to take control of an affected system. CISA encourages users and administrators to review Cisco Security Advisory...

Google Releases Security Updates for Chrome

Google has released Chrome version 88.0.4324.182 for Windows, Mac, and Linux. This version addresses vulnerabilities that an attacker could exploit to take control of an affected system. CISA encourages users and administrators to review the Chrome Release and apply the necessary updates. This...

VMware Releases Security Update

VMware has released a security update to address a vulnerability in vSphere Replication. An attacker could exploit this vulnerability to take control of an affected system. CISA encourages users and administrators to review VMware Security Advisory VMSA-2021-0001 and apply the necessary update...

Compromise of U.S. Water Treatment Facility

In response to recent events where unidentified cyber actors obtained unauthorized access to the supervisory control and data acquisition SCADA system at a U.S. drinking water treatment facility, CISA, the Federal Bureau of Investigation, the Environmental Protection Agency, and the Multi-State...