CyberSecure Specialist

CISA, in partnership with the Federal Bureau of Investigation (FBI), the Department of Health and Human Services, and the Multi-State Information Sharing and Analysis Center issued a joint Cybersecurity Advisory to help protect businesses and critical infrastructure organizations in North America and Europe against Interlock ransomware.   This advisory highlights known Interlock ransomware indicators of compromise and tactics, techniques, and procedures identified through recent FBI investigations.   Actions organizations can take today to mitigate Interlock ransomware threat…

CISA has added one new vulnerability to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. See CISA’s Alert Microsoft Releases Guidance on Exploitation of SharePoint Vulnerability (CVE-2025-53770) for more information and to apply the recommended mitigations.  CVE-2025-53770: Microsoft SharePoint Server Remote Code Execution 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…

CISA is aware of active exploitation of a new remote code execution (RCE) vulnerability enabling unauthorized access to on-premise SharePoint servers. While the scope and impact continue to be assessed, the new Common Vulnerabilities and Exposures (CVE), CVE-2025-53770, is a variant of the existing vulnerability CVE-2025-49706 and poses a risk to organizations. This exploitation activity, publicly reported as “ToolShell,” provides unauthenticated access to systems and enables malicious actors to fully access SharePoint content, including file systems and internal…