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.

Chinese Malicious Cyber Activity

The Cybersecurity and Infrastructure Security Agency (CISA), the Federal Bureau of Investigation (FBI), and the Department of Defense (DoD) have identified a malware variant—referred as TAIDOOR—used by the Chinese government. In addition, U.S. Cyber Command has released the malware sample to the malware aggregation tool and repository, VirusTotal.

Cisco Releases Security Updates for Multiple Products

Cisco has released security updates to address vulnerabilities affecting multiple products. An unauthenticated, remote attacker could exploit some of these vulnerabilities to take control of an affected system.

The Cybersecurity and Infrastructure Security Agency (CISA) encourages users and administrators to review the following Cisco Advisories and apply the necessary updates. For updates addressing lower severity vulnerabilities, see the Cisco Security Advisories page.

GNU GRUB2 Vulnerability

Free Software Foundation GNU Project's multiboot boot loader, GNU GRUB2, contains a vulnerability—CVE-2020-10713—that a local attacker could exploit to take control of an affected system.

Adobe Releases Security Updates for Magento

Adobe has released security updates to address vulnerabilities in Magento Commerce 2 (formerly known as Magento Enterprise Edition) and Magento Open Source 2 (formerly known as Magento Community Edition). An attacker could exploit some of these vulnerabilities to take control of an affected system.

The Cybersecurity and Infrastructure Security Agency (CISA) encourages users and administrators to review Adobe Security Bulletin APSB20-47 and apply the necessary updates.

Mozilla Releases Security Updates for Multiple Products

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

The Cybersecurity and Infrastructure Security Agency (CISA) encourages users and administrators to review the following Mozilla Security Advisories and apply the necessary updates:

Google Releases Security Updates for Chrome

Google has released Chrome version 84.0.4147.105 for Windows, Mac, and Linux. This version addresses vulnerabilities that an attacker could exploit to take control of an affected system.

The Cybersecurity and Infrastructure Security Agency (CISA) encourages users and administrators to review the Chrome Release and apply the necessary updates.