CISA News

CISA Releases Four Industrial Control Systems Advisories

CISA News
20 hours 21 minutes ago

CISA released four Industrial Control Systems (ICS) advisories on August 19, 2025. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS.

CISA encourages users and administrators to review newly released ICS advisories for technical details and mitigations.

CISA

CISA Adds One Known Exploited Vulnerability to Catalog

CISA News
1 day 20 hours ago

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. 

  • CVE-2025-54948 Trend Micro Apex One OS Command Injection Vulnerability

These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise. 

Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the KEV Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information. 

Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of KEV Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria. 

CISA

CISA Releases Thirty-Two Industrial Control Systems Advisories

CISA News
5 days 20 hours ago

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.

CISA encourages users and administrators to review newly released ICS advisories for technical details and mitigations.

CISA

CISA and Partners Release Asset Inventory Guidance for Operational Technology Owners and Operators

CISA News
6 days 20 hours ago

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 guidance explains how OT owners and operators can create, maintain, and use asset inventories and taxonomies to identify and safeguard their critical assets. 

Following this guidance, organizations may gain deeper insights into their architecture, optimize their defenses, better assess and reduce cybersecurity risk in their environments, and enhance incident response planning to ensure service continuity.

CISA

CISA Adds Two Known Exploited Vulnerabilities to Catalog

CISA News
6 days 20 hours ago

CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. 

  • CVE-2025-8875 N-able N-central Insecure Deserialization Vulnerability
  • CVE-2025-8876 N-able N-central Command Injection Vulnerability

These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise. 

Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the KEV Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information. 

Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of KEV Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria. 

CISA

CISA Releases Seven Industrial Control Systems Advisories

CISA News
1 week ago

CISA released seven Industrial Control Systems (ICS) advisories on August 12, 2025. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS.

CISA encourages users and administrators to review newly released ICS advisories for technical details and mitigations.

CISA

CISA Adds Three Known Exploited Vulnerabilities to Catalog

CISA News
1 week ago

CISA has added three new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

  • CVE-2013-3893 Microsoft Internet Explorer Resource Management Errors Vulnerability
  • CVE-2007-0671 Microsoft Office Excel Remote Code Execution Vulnerability
  • CVE-2025-8088 RARLAB WinRAR Path Traversal Vulnerability

These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise.

Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the KEV Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information.

Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of KEV Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria.

CISA

CISA Releases Ten Industrial Control Systems Advisories

CISA News
1 week 5 days ago

CISA released ten Industrial Control Systems (ICS) advisories on August 7, 2025. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS.

CISA encourages users and administrators to review newly released ICS advisories for technical details and mitigations.

CISA

CISA Issues ED 25-02: Mitigate Microsoft Exchange Vulnerability

CISA News
1 week 5 days ago

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.

Although this directive is only for FCEB agencies, CISA strongly encourages all organizations to address this vulnerability. For additional details, see CISA’s Alert: Microsoft Releases Guidance on Vulnerability (CVE-2025-53786) in Hybrid Exchange Deployments.

CISA

CISA Releases Malware Analysis Report Associated with Microsoft SharePoint Vulnerabilities

CISA News
1 week 6 days ago

CISA published a Malware Analysis Report (MAR) with analysis and associated detection signatures on files related to Microsoft SharePoint vulnerabilities:

Cyber threat actors have chained CVE-2025-49704 and CVE-2025-49706 (in an exploit chain publicly known as “ToolShell”) to gain unauthorized access to on-premises SharePoint servers. CISA analyzed six files including two Dynamic Link-Library (.DLL), one cryptographic key stealer, and three web shells. Cyber threat actors could leverage this malware to steal cryptographic keys and execute a Base64-encoded PowerShell command to fingerprint host system and exfiltrate data.  

CISA added CVE-2025-49704 and CVE-2025-49706 to its Known Exploited Vulnerabilities Catalog on July 22, 2025, and CVE-2025-53770 on July 20, 2025.

CISA encourages organizations to use the indicators of compromise (IOCs) and detection signatures in this MAR to identify malware.

Downloadable copy of IOCs associated with this malware:

MAR-251132.c1.v1.CLEAR_stix2 (JSON, 84.95 KB )

Downloadable copies of the SIGMA rule associated with this malware:

CMA SIGMA 251132 1 (YAML, 4.22 KB ) CMA SIGMA 251132 2 (YAML, 2.86 KB ) CMA SIGMA 251132 (YAML, 5.55 KB )

For more information on the malware files and YARA rules for detection, see MAR-251132.c1.v1 Exploitation of SharePoint Vulnerabilities.

Disclaimer:  

The information in this report is being provided “as is” for informational purposes only. CISA does not endorse any commercial entity, product, company, or service, including any entities, products, or services linked within this document. Any reference to specific commercial entities, products, processes, or services by service mark, trademark, manufacturer, or otherwise, does not constitute or imply endorsement, recommendation, or favoring by CISA. 

CISA

Microsoft Releases Guidance on High-Severity Vulnerability (CVE-2025-53786) in Hybrid Exchange Deployments

CISA News
1 week 6 days ago

Update (08/12/2025): CISA has updated this alert to provide clarification on identifying Exchange Servers on an organization’s networks and provided further guidance on running the Microsoft Exchange Health Checker.

Update (08/07/2025): CISA issued Emergency Directive (ED) 25-02: Mitigate Microsoft Exchange Vulnerability in response to CVE-2025-53786.

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 the time of this alert’s publication, CISA strongly urges organizations to implement Microsoft’s Exchange Server Hybrid Deployment Elevation of Privilege Vulnerability guidance outlined below, or risk leaving the organization vulnerable to a hybrid cloud and on-premises total domain compromise.  

  1. Organizations should first inventory all Exchange Servers on their networks (organizations should leverage existing visibility tools or publicly available tools, such as NMAP or PowerShell scripts, to accomplish this task).
  2. If using Exchange hybrid, review Microsoft’s guidance Exchange Server Security Changes for Hybrid Deployments to determine if your Microsoft hybrid deployments are potentially affected and available for a Cumulative Update (CU).
  3. Install Microsoft’s April 2025 Exchange Server Hotfix Updates on the on-premise Exchange server and follow Microsoft’s configuration instructions Deploy dedicated Exchange hybrid app.
  4. For organizations using Exchange hybrid (or have previously configured Exchange hybrid but no longer use it), review Microsoft's Service Principal Clean-Up Mode for guidance on resetting the service principal’s keyCredentials.
  5. Upon completion, run the Microsoft Exchange Health Checker with appropriate permissions to identify the CU level of each Exchange Server identified and to determine if further steps are required.


CISA highly recommends entities disconnect public-facing versions of Exchange Server or SharePoint Server that have reached their end-of-life (EOL) or end-of-service from the internet. For example, SharePoint Server 2013 and earlier versions are EOL and should be discontinued if still in use.   

Organizations should review Microsoft’s blog Dedicated Hybrid App: temporary enforcements, new HCW and possible hybrid functionality disruptions for additional guidance as it becomes available. 

Disclaimer:   

The information in this report is being provided “as is” for informational purposes only. CISA does not endorse any commercial entity, product, company, or service, including any entities, products, or services linked within this document. Any reference to specific commercial entities, products, processes, or services by service mark, trademark, manufacturer, or otherwise, does not constitute or imply endorsement, recommendation, or favoring by CISA.  

CISA

CISA Adds Three Known Exploited Vulnerabilities to Catalog

CISA News
2 weeks ago

CISA has added three new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation.

  • CVE-2020-25078 D-Link DCS-2530L and DCS-2670L Devices Unspecified Vulnerability
  • CVE-2020-25079 D-Link DCS-2530L and DCS-2670L Command Injection Vulnerability
  • CVE-2022-40799 D-Link DNR-322L Download of Code Without Integrity Check Vulnerability

These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise.

Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vulnerabilities established the KEV Catalog as a living list of known Common Vulnerabilities and Exposures (CVEs) that carry significant risk to the federal enterprise. BOD 22-01 requires Federal Civilian Executive Branch (FCEB) agencies to remediate identified vulnerabilities by the due date to protect FCEB networks against active threats. See the BOD 22-01 Fact Sheet for more information.

Although BOD 22-01 only applies to FCEB agencies, CISA strongly urges all organizations to reduce their exposure to cyberattacks by prioritizing timely remediation of KEV Catalog vulnerabilities as part of their vulnerability management practice. CISA will continue to add vulnerabilities to the catalog that meet the specified criteria.

CISA

CISA Releases Two Industrial Control Systems Advisories

CISA News
2 weeks ago

CISA released two Industrial Control Systems (ICS) advisories on August 5, 2025. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS.

CISA encourages users and administrators to review newly released ICS advisories for technical details and mitigations.

CISA

CISA and USCG Issue Joint Advisory to Strengthen Cyber Hygiene in Critical Infrastructure

CISA News
2 weeks 5 days ago

CISA, in partnership with the U.S. Coast Guard (USCG), released a joint Cybersecurity Advisory aimed at helping critical infrastructure organizations improve their cyber hygiene. This follows a proactive threat hunt engagement conducted at a U.S. critical infrastructure facility.

During this engagement, CISA and USCG did not find evidence of malicious cyber activity or actor presence on the organization’s network but did identify several cybersecurity risks. CISA and USCG are sharing their findings and associated mitigations to assist other critical infrastructure organizations identify potential similar issues and take proactive measures to improve their cybersecurity posture. The mitigations include best practices such as not storing passwords or credentials in plaintext, avoiding sharing local administrator account credentials, and implementing comprehensive logging.

For more detailed mitigations addressing the identified cybersecurity risks, review joint Cybersecurity Advisory: CISA and USCG Identify Areas for Cyber Hygiene Improvement After Conducting Proactive Threat Hunt at US Critical Infrastructure Organization. 

CISA

Thorium Platform Public Availability

CISA News
2 weeks 5 days ago

Today, CISA, in partnership with Sandia National Laboratories, announced the public availability of Thorium, a scalable and distributed platform for automated file analysis and result aggregation. Thorium enhances cybersecurity teams' capabilities by automating analysis workflows through seamless integration of commercial, open-source, and custom tools. It supports various mission functions, including software analysis, digital forensics, and incident response, allowing analysts to efficiently assess complex malware threats.

Thorium enables teams that frequently analyze files to achieve scalable automation and results indexing within a unified platform. Analysts can integrate command-line tools as Docker images, filter results using tags and full-text search, and manage access with strict group-based permissions.  

Designed to scale with hardware using Kubernetes and ScyllaDB, Thorium can ingest over 10 million files per hour per permission group while maintaining rapid query performance. It also allows users to define event triggers and tool execution sequences, control the platform via RESTful API, and aggregate outputs for further analysis or integration with downstream processes.

CISA encourages cybersecurity teams to use Thorium and provide feedback to enhance its capabilities. For more information on Thorium and how it can improve your cybersecurity operations, see CISA’s Thorium resource webpage. 

CISA

CISA Releases Two Industrial Control Systems Advisories

CISA News
2 weeks 5 days ago

CISA released two Industrial Control Systems (ICS) advisories on July 31, 2025. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS.

CISA encourages users and administrators to review newly released ICS advisories for technical details and mitigations.

CISA

Eviction Strategies Tool Released

CISA News
2 weeks 6 days ago

Today, CISA released the Eviction Strategies Tool to provide cyber defenders with critical support and assistance during the containment and eviction phases of incident response. This tool includes:

  • Cyber Eviction Strategies Playbook Next Generation (Playbook-NG): A web-based application for next-generation operations.
  • COUN7ER: A database of atomic post-compromise countermeasures users can execute based on adversary tactics, techniques, and procedures.

Together, Playbook-NG and COUN7ER create a systematic, tailored eviction plan that leverages distinct countermeasures to effectively contain and evict adversarial intrusions.

The Eviction Strategies Tool directly addresses a critical gap: the need for a clear understanding of the necessary actions to properly contain and evict adversaries from networks and devices.

CISA encourages cyber defenders to use the Eviction Strategies Tool available on the CISA Eviction Strategies Tool webpage or download it directly from GitHub at https://github.com/cisagov/playbook-ng. Check out our fact sheet for more information: Eviction Strategies Tool | CISA.

Please share your thoughts through our anonymous survey. We appreciate your feedback.

CISA

CISA Releases Part One of Zero Trust Microsegmentation Guidance

CISA News
3 weeks ago

CISA released Microsegmentation in Zero Trust, Part One: Introduction and Planning as part of its ongoing efforts to support Federal Civilian Executive Branch (FCEB) agencies implementing zero trust architectures (ZTAs). 

This guidance provides a high-level overview of microsegmentation, focusing on its key concepts, associated challenges and potential benefits, and includes recommended actions to modernize network security and advance zero trust principles.

Microsegmentation is a critical component of ZTA that reduces the attack surface, limits lateral movement, and enhances visibility for monitoring smaller, isolated groups of resources.

While the guidance focuses on FCEB references, its principles are applicable to any organization. As part of its Journey to Zero Trust series, CISA plans to release a subsequent technical guide to offer detailed implementation scenarios and technical considerations for implementation teams. Visit our Zero Trust webpage for more information and resources.

CISA

CISA Releases Five Industrial Control Systems Advisories

CISA News
3 weeks ago

CISA released five Industrial Control Systems (ICS) advisories on July 29, 2025. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS.

CISA encourages users and administrators to review newly released ICS advisories for technical details and mitigations.

CISA

CISA and Partners Release Updated Advisory on Scattered Spider Group

CISA News
3 weeks ago

CISA, along with the Federal Bureau of Investigation, Canadian Centre for Cyber Security, Royal Canadian Mounted Police, the Australian Cyber Security Centre’s Australian Signals Directorate, and the Australian Federal Police and National Cyber Security Centre, released an updated joint Cybersecurity Advisory on Scattered Spider—a cybercriminal group targeting commercial facilities sectors and subsectors. This advisory provides updated tactics, techniques, and procedures (TTPs) obtained through FBI investigations conducted through June 2025.

Scattered Spider threat actors have been known to use various ransomware variants in data extortion attacks, most recently including DragonForce ransomware. While Scattered Spider often changes TTPs to remain undetected, some TTPs remain consistent. These actors frequently use social engineering techniques such as phishing, push bombing, and subscriber identity module swap attacks to obtain credentials, install remote access tools, and bypass multi-factor authentication.

The Mitigations section of the Scattered Spider joint Cybersecurity Advisory offers critical infrastructure organizations and commercial facilities recommendations to fortify their defenses.

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