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Today, CISA—in partnership with the Federal Bureau of Investigation (FBI) and Multi-State Information Sharing and Analysis Center (MS-ISAC)—released joint Cybersecurity Advisory, #StopRansomware: Medusa Ransomware. This advisory provides tactics, techniques, and procedures (TTPs), indicators of compromise (IOCs), and detection methods associated with known Medusa ransomware activity. Medusa is a ransomware-as-a-service variant used to conduct ransomware attacks;… Read more

Summary Note: This joint Cybersecurity Advisory is part of an ongoing #StopRansomware effort to publish advisories for network defenders detailing various ransomware variants and ransomware threat actors. These #StopRansomware advisories include recently and historically observed tactics, techniques, and procedures (TTPs) and indicators of compromise (IOCs) to help organizations protect against ransomware. Visit stopransomware.gov to see… Read more

CISA has added six new vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. CVE-2025-24983 Microsoft Windows Win32k Use-After-Free Vulnerability CVE-2025-24984 Microsoft Windows NTFS Information Disclosure Vulnerability CVE-2025-24985 Microsoft Windows Fast FAT File System Driver Integer Overflow Vulnerability CVE-2025-24991 Microsoft Windows NTFS Out-Of-Bounds Read Vulnerability CVE-2025-24993 Microsoft Windows NTFS Heap-Based Buffer Overflow… Read more

View CSAF 1. EXECUTIVE SUMMARY CVSS v4 6.8 ATTENTION: Low attack complexity Vendor: Schneider Electric Equipment: Uni-Telway Driver Vulnerability: Improper Input Validation 2. RISK EVALUATION Successful exploitation of this vulnerability could allow an attacker to perform a denial of service. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS Schneider Electric reports the following products are affected: Schneider… Read more

View CSAF 1. EXECUTIVE SUMMARY CVSS v4 9.3 ATTENTION: Exploitable remotely/low attack complexity Vendor: Optigo Networks Equipment: Visual BACnet Capture Tool, Optigo Visual Networks Capture Tool Vulnerabilities: Use of Hard-coded, Security-relevant Constants, Authentication Bypass Using an Alternate Path or Channel 2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow an attacker to bypass authentication,… Read more

CISA released two Industrial Control Systems (ICS) advisories on March 11, 2025. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-25-070-01 Schneider Electric Uni-Telway Driver ICSA-25-070-02 Optigo Networks Visual BACnet Capture Tool/Optigo Visual Networks Capture Tool CISA encourages users and administrators to review newly released ICS advisories for technical… Read more

CISA has added five new vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. CVE-2025-25181 Advantive VeraCore SQL Injection Vulnerability CVE-2024-57968 Advantive VeraCore Unrestricted File Upload Vulnerability CVE-2024-13159 Ivanti Endpoint Manager (EPM) Absolute Path Traversal Vulnerability CVE-2024-13160 Ivanti Endpoint Manager (EPM) Absolute Path Traversal Vulnerability CVE-2024-13161 Ivanti Endpoint Manager (EPM) Absolute Path Traversal Vulnerability These… Read more

The Federal Bureau of Investigation (FBI) Internet Crime Complaint Center (IC3) has released an alert warning of a scam involving criminal actors masquerading as the “BianLian Group.”  The cyber criminals target corporate executives by sending extortion letters threatening to release victims’ sensitive information unless payment is received. CISA encourages organizations to review the following FBI Public Service… Read more

View CSAF 1. EXECUTIVE SUMMARY CVSS v4 8.6 ATTENTION: Exploitable remotely/low attack complexity Vendor: Hitachi Energy Equipment: Relion 670/650/SAM600-IO Vulnerability: Improper Handling of Insufficient Privileges 2. RISK EVALUATION Successful exploitation of this vulnerability could allow anyone with user credentials to bypass the security controls enforced by the product. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS Hitachi… Read more