CyberNew CyberNew
Vulnerabilities & CVEs BleepingComputer 1 week ago

Warlock ransomware breach SharePoint in water, telecom operator attacks

CN
CyberNew Threat Research Desk
• Original Reporting: BleepingComputer
CyberNew Threat Intel Assessment
Assessed Severity: HIGH
Impacted Surface
Enterprise Data & Identity Stores
Intelligence Sector
Vulnerabilities & CVEs

Analyst Takeaway

"The China-linked ransomware group Warlock targeted a water utility, a telecom provider, a regional government body, and a university by exploiting SharePoint vulnerabilities to gain initial access. Over the past two months, the threat actor appears to have focused on countries speaking Portuguese and Spanish across Europe, Africa, and Latin America. The gang emerged in June 2025 and gained..."

Recommended Defense & Mitigation

  • Access Review: Audit administrative roles, enforce phishing-resistant MFA, and review privilege escalations.
  • Credential Rotation: Rotate high-privilege service credentials and tokens associated with impacted services.
Curated & Verified by CyberNew Threat Intelligence Desk Standard Defense Framework (NIST / MITRE ATT&CK)

Warlock ransomware breach SharePoint in water, telecom operator attacks

The China-linked ransomware group Warlock targeted a water utility, a telecom provider, a regional government body, and a university by exploiting SharePoint vulnerabilities to gain initial access.

​Over the past two months, the threat actor appears to have focused on countries speaking Portuguese and Spanish across Europe, Africa, and Latin America.

The gang emerged in June 2025 and gained notoriety a month later after exploiting a chain of zero-day vulnerabilities in Microsoft SharePoint known as ToolShell (CVE-2025-49704, CVE-2025-49706, CVE-2025-53770, and CVE-2025-53771).

Save your seat

Source Verification & Original Intelligence

This threat report was reviewed by CyberNew analysts and cross-referenced with primary security disclosures from BleepingComputer.

Primary Advisory →