The US-CERT Current Activity web page is a regularly updated summary of the most frequent, high-impact types of security incidents currently being reported to the US-CERT.

RSS feed for current activities

Mozilla Releases Security Updates for Thunderbird, Firefox ESR, and Firefox

Mozilla has released security updates to address vulnerabilities in Firefox, Firefox ESR, and Thunderbird. An attacker could exploit these vulnerabilities to take control of an affected system.
 

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 administrators to review VMware Security Advisory VMSA-2021-0002 and apply the necessary updates.

CISA Releases Joint Cybersecurity Advisory on Exploitation of Accellion File Transfer Appliance

The cybersecurity authorities of Australia, New Zealand, Singapore, the United Kingdom, and the United States have released Joint Cybersecurity Advisory AA21-055A: Exploitation of Accellion File Transfer Appliance. Cyber actors worldwide have exploited vulnerabilities in Accellion File Transfer Appliance to attack multiple federal, and state, local, tribal, and territorial government organizations as well as private industry organizations in the medical, legal, telecommunications, finance, and energy fields.

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.

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 cisco-sa-anyconnect-dll-hijac-JrcTOQMC and apply the necessary updates.

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.