Attacks

CISA is releasing this Alert to provide guidance in response to a widespread software supply chain compromise involving the world’s largest JavaScript registry, npmjs.com. A self-replicating worm—publicly known as “Shai-Hulud”—has compromised over 500 packages.[i] After gaining initial access, the malicious cyber actor deployed malware that scanned the environment for sensitive credentials. The cyber actor then targeted GitHub Personal Access Tokens (PATs) and application programming interface (API) keys for cloud services, including Amazon Web Services (AWS),…

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SonicWall released a security advisory to assist their customers with protecting systems impacted by the MySonicWall cloud backup file incident. SonicWall’s investigation found that a malicious actor performed a series of brute force techniques against their MySonicWall.com web portal to gain access to a subset of customers’ preference files stored in their cloud backups. While credentials within the files were encrypted, the files also included information that actors can use to gain access to customers’…

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Today, CISA released a Malware Analysis Report detailing the functionality of two sets of malware obtained from an organization compromised by cyber threat actors exploiting CVE-2025-4427 and CVE-2025-4428 in Ivanti Endpoint Manager Mobile (Ivanti EPMM).   The Malware Analysis Report, Malicious Listener for Ivanti EPMM Systems, provides guidance to help organizations detect and mitigate these threats, including indicators of compromise and YARA and SIGMA rules. Mitigations include highlighting the need to upgrade Ivanti EPMM systems to…

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CISA, in collaboration with NSA and 19 international partners, released joint guidance outlining A Shared Vision of Software Bill of Materials (SBOM) for Cybersecurity. This marks a significant step forward in strengthening software supply chain transparency and security worldwide. An SBOM is a formal record detailing the components and supply chain relationships used in building software. SBOMs act as a software “ingredients list” providing organizations with essential visibility into software dependencies, enabling them to identify…

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CISA, along with the National Security Agency, Federal Bureau of Investigation, and international partners, released a joint Cybersecurity Advisory on People’s Republic of China (PRC) state-sponsored Advanced Persistent Threat (APT) actors targeting critical infrastructure across sectors and continents to maintain persistent, long-term access to networks. This advisory builds on previous reporting and is based on real-world investigations conducted across multiple countries through July 2025. While the activity observed overlaps with industry reporting on the group known as Salt Typhoon,…

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CISA released updated guidance for the Minimum Elements for a Software Bill of Materials (SBOM) for public comment—comment period begins today and concludes on October 3, 2025. These updates build on the 2021 version of the National Telecommunications and Information Administration SBOM Minimum Elements to reflect advancements in tooling and implementation.   An SBOM serves as a vital inventory of software components, enabling organizations to identify vulnerabilities, manage dependencies, and mitigate risks. The update refines data…

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CISA released thirty-two Industrial Control Systems (ICS) advisories on August 14, 2025. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-25-226-01 Siemens SIMATIC RTLS Locating Manager ICSA-25-226-02 Siemens COMOS ICSA-25-226-03 Siemens Engineering Platforms ICSA-25-226-04 Siemens Simcenter Femap ICSA-25-226-05 Siemens Wibu CodeMeter Runtime ICSA-25-226-06 Siemens Opcenter Quality ICSA-25-226-07 Siemens Third-Party Components in SINEC OS ICSA-25-226-08 Siemens RUGGEDCOM CROSSBOW Station Access Controller ICSA-25-226-09 Siemens RUGGEDCOM APE1808 ICSA-25-226-10 Siemens SIPROTEC 5 ICSA-25-226-11 Siemens SIMATIC S7-PLCSIM ICSA-25-226-12 Siemens SIPROTEC 4 and SIPROTEC 4 Compact ICSA-25-226-13 Siemens…

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CISA, along with the National Security Agency, the Federal Bureau of Investigation, Environmental Protection Agency, and several international partners, released comprehensive guidance to help operational technology (OT) owners and operators across all critical infrastructure sectors create and maintain OT asset inventories and supplemental taxonomies.  An asset inventory is a regularly updated, structured list of an organization’s systems, hardware, and software. It includes a categorization system—a taxonomy—that classifies assets based on their importance and function. This…

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Today, CISA issued Emergency Directive (ED) 25-02: Mitigate Microsoft Exchange Vulnerability in response to CVE-2025-53786, a vulnerability in Microsoft Exchange server hybrid deployments.   ED 25-02 directs all Federal Civilian Executive Branch (FCEB) agencies with Microsoft Exchange hybrid environments to implement required mitigations by 9:00 AM EDT on Monday, August 11, 2025.  This vulnerability presents significant risk to all organizations operating Microsoft Exchange hybrid-joined configurations that have not yet implemented the April 2025 patch guidance.…

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Note: This Alert may be updated to reflect new guidance issued by CISA or other parties.  CISA is aware of the newly disclosed high-severity vulnerability, CVE-2025-53786, that allows a cyber threat actor with administrative access to an on-premise Microsoft Exchange server to escalate privileges by exploiting vulnerable hybrid-joined configurations. This vulnerability, if not addressed, could impact the identity integrity of an organization’s Exchange Online service.  While Microsoft has stated there is no observed exploitation as of…

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