The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has analyzed malicious “listener” malware actively deployed against Ivanti Endpoint Manager Mobile (EPMM) servers following public proof-of-concept exploit code for CVE-2025-4427 and CVE-2025-4428, and the resulting toolset allows...
CISA’s release of a Malware Analysis Report (MAR) detailing a Malicious Listener discovered on compromised Ivanti Endpoint Manager Mobile (EPMM) systems should reset priorities for every IT team that runs on-premises mobile device management (MDM). The analysis dissects two sets of malware...
ESET Research has uncovered a previously undocumented threat actor it calls GhostRedirector, which in June 2025 was found to have compromised at least 65 Windows servers across multiple countries and deployed two custom tools — a C++ backdoor named Rungan and a native IIS module named Gamshen...
The identifier CVE-2025-49712 does not appear in any public, authoritative advisory or vulnerability database at this time; the single URL you supplied resolves to Microsoft’s update guide infrastructure but returns no accessible content without JavaScript, and independent searches for...
Thanks — quick clarification before I start the 2,000+ word feature.
I searched public sources and could not find any authoritative record for CVE-2025-53760. The Microsoft SharePoint incident widely reported in July–August 2025 is CVE-2025-53770 (aka “ToolShell”) — a deserialization / RCE chain...
Microsoft 365 tenants across the United States have recently become the focal point of a sophisticated, widespread phishing campaign that leverages a rarely-discussed but highly impactful vulnerability in Exchange Online’s Direct Send feature. Security researchers have confirmed that, since May...
In a significant development for enterprise security, Semperis has announced enhancements to its Directory Services Protector (DSP) platform, aimed at mitigating a critical vulnerability in Windows Server 2025's Active Directory. This vulnerability, dubbed "BadSuccessor," was identified by...
Original release date: February 24, 2021
Summary
This joint advisory is the result of a collaborative effort by the cybersecurity authorities of Australia,[Link Removed] New Zealand,[2] Singapore,[3] the United Kingdom,[4] and the United States.[Link Removed][6] These authorities are aware of...
Original release date: April 16, 2020 | Last revised: June 30, 2020
Summary
Note: This Activity Alert uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge (ATT&CK®) framework. See the ATT&CK for Enterprise framework for all referenced threat actor techniques and mitigations...
Original release date: January 31, 2020
Summary
Unknown cyber network exploitation (CNE) actors have successfully compromised numerous organizations that employed vulnerable Citrix devices through a critical vulnerability known as CVE-2019-19781.Link Removed
Though mitigations were released...
Original release date: May 12, 2017 | Last revised: May 19, 2017
Systems Affected
Microsoft Windows operating systems
Overview
According to numerous open-source reports, a widespread ransomware campaign is affecting various organizations with reports of tens of thousands of infections in...