Ransomwarehigh

Colt Technology faces multi-day outage after WarLock ransomware attack

Security Affairsby @securityaffairsAug 17, 2025 · 23:23 UTC (Aug 17, 2025)2 min read2

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CVEs: CVE-2025-53770

Tags: cve-2025-53770 ransomware

Vulnerabilities mentioned

All

CVE	Vulnerability	CVSS	EPSS	Signals	Published
CVE-2025-53770	Unauthenticated Deserialization RCE in Microsoft SharePoint Server on-premises	9.8	100%	KEVRansomwarePoC ×3	Jul 20, 2025 KEV Jul 20, 2025

From the original article

2 min read at securityaffairs.com

WarLock ransomware hit Colt Telecom, causing outages in hosting, porting, Colt Online, and Voice API since August 12. UK-based Colt Technology Services suffered a cyberattack, reportedly caused by WarLock ransomware , resulting in multi-day outages for hosting, porting, Colt Online, and Voice API services.

Security Affairs

By @securityaffairs · securityaffairs.com

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