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.
Excerpt from the primary source: BleepingComputer
Who is affected
Small businesses · Enterprises · Critical infrastructure
Affected technology: SharePoint
What you should do · Review
Review whether your organization uses SharePoint and assess exposure using the linked advisories.
Automated guidance based on this story's classification. Check the linked advisories for specifics.
Sources
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Original reporting
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CISA Adds Two Known Exploited Vulnerabilities to Catalog
CISA has added two new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2026-65660 Microsoft SharePoint Code Injection Vulnerability CVE-2026-67279 Mikrotik RouterOS Improper Enforcement of Behavioral Workflow Vulnerability These types of vulnerabilities are a frequent attack vector for malicious cyber actors and pose significant risks to the…
CISA lists this as exploited in the wild. Unpatched SharePoint and RouterOS systems are exposed to active attacks now.
Apply the vendor's security update for SharePoint and RouterOS.
Microsoft SharePoint Code Injection Vulnerability (CVE-2026-65660) is being actively exploited, CISA warns
CISA added CVE-2026-65660 (Microsoft SharePoint) to its Known Exploited Vulnerabilities catalog on September 25, 2026, which means there is reliable evidence of exploitation in the wild. Microsoft SharePoint contains a code injection vulnerability which could allow an authorized attacker to execute code over a network.
CISA lists this as exploited in the wild. Unpatched SharePoint systems are exposed to active attacks now.
Apply the vendor's security update for SharePoint.