Microsoft Warns of Destructive Malware Targeting Ukrainian Organizations

Microsoft has released a blog post on possible Master Boot Record MBR Wiper activity targeting Ukrainian organizations, including Ukrainian government agencies. According to Microsoft, powering down the victim device executes the malware, which overwrites the MBR with a ransom note; however, the...

Apple Releases Security Updates for iOS and iPadOS

Apple has released security updates to address a vulnerability affecting iOS 15.2.1 and iPadOS 15.2.1. An attacker could exploit this vulnerability to cause a denial-of-service condition. CISA encourages users and administrators to review the Apple security page for iOS 15.2.1 and iPadOS 15.2.1 a...

Juniper Networks Releases Security Updates for Multiple Products

Juniper Networks 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 Juniper Networks security advisories page an...

Cisco Releases Security Updates for Multiple Products

Cisco has released security updates to address a vulnerability affecting Cisco Unified Contact Center Management Portal Unified CCMP and Cisco Unified Contact Center Domain Manager Unified CCDM. A remote attacker could exploit this vulnerability to take control of an affected system. CISCA...

Citrix Releases Security Update for Workspace App for Linux

Citrix has released a security update to address a vulnerability in Workspace App for Linux. An attacker could exploit this vulnerability to take control of an affected system. CISA encourages users and administrators to review Citrix Security Update CTX338435 and apply the necessary update. This...

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

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. CISA encourages users and administrators to review the Mozilla security advisories for Firefox...

Microsoft Releases January 2022 Security Updates

Microsoft has released updates to address multiple vulnerabilities in Microsoft software. An attacker could exploit some of these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review Microsoft’s January 2022 Security Update Summary and Deployme...

Samba Releases Security Update

The Samba Team has released a security update to address a vulnerability in multiple versions of Samba. An attacker could exploit this vulnerability to take control of an affected system. CISA encourages users and administrators to review Samba Security Announcement CVE-2021-43566 and apply the...

Adobe Releases Security Updates for Multiple Products

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...

Google Releases Security Updates for Chrome

Google has released Chrome version 97.0.4692.71 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 as...

VMware Releases Security Updates

VMware has released a security advisory to address a vulnerability in Workstation, Fusion, and ESXi. An attacker could exploit this vulnerability to take control of an affected system. CISA encourages users and administrators to review VMware Security Advisory VMSA-2022-0001 and apply the necessa...

VMware Releases Security Advisory

VMware has released a security advisory to address a vulnerability in Workspace ONE UEM console. An attacker could exploit this vulnerability to obtain sensitive information. CISA encourages users and administrators to review VMware Security Advisory VMSA-2021-0029 and apply the necessary...

CISA Adds Two Known Exploited Vulnerabilities to Catalog

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence that threat actors are actively exploiting the vulnerabilities listed in the table below. These types of vulnerabilities are a frequent attack vector for malicious cyber actors of all types an...

Immediate Steps to Strengthen Critical Infrastructure against Potential Cyberattacks

In light of persistent and ongoing cyber threats, CISA urges critical infrastructure owners and operators to take immediate steps to strengthen their computer network defenses against potential cyberattacks. CISA has released CISA Insights: Preparing For and Mitigating Potential Cyber Threats to...

Microsoft Releases December 2021 Security Updates

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

Adobe Releases Security Updates for Multiple Products

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 Adobe’s Security Bulletins and apply the necessary updates...

Google Releases Security Updates for Chrome

Google has released Chrome version 96.0.4664.110 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 as...

Apache Releases Log4j Version 2.15.0 to Address Critical RCE Vulnerability Under Exploitation

The Apache Software Foundation has released a security advisory to address a remote code execution vulnerability CVE-2021-44228 affecting Log4j versions 2.0-beta9 to 2.14.1. A remote attacker could exploit this vulnerability to take control of an affected system. Log4j is an open-source, Java-bas...

Cisco Releases Security Advisory for Multiple Products Affected by Apache HTTP Server Vulnerabilities

Cisco has released a security advisory to address Cisco products affected by multiple vulnerabilities in Apache HTTP Server 2.4.48 and earlier releases. An unauthenticated remote attacker could exploit this vulnerability to take control of an affected system. CISA encourages users and...

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

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. CISA encourages users and administrators to review the Mozilla security advisories for Firefox...