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SharePoint
Another SharePoint RCE exploited: Patch, then rotate your machine keys (CVE-2026-50522)

Attackers are exploiting a critical SharePoint remote code execution (RCE) vulnerability (CVE-2026-50522) to extract the servers’ IIS machine keys. “WatchTowr is …

patch tuesday
AI-driven bug hunting fuels record Microsoft Patch Tuesday

Microsoft has released patches for 570+ vulnerabilities on July 2026 Patch Tuesday, including two that are being leveraged by attackers (CVE-2026-56155 and CVE-2026-56164), …

Microsoft SharePoint
High-severity SharePoint RCE bug patched by Microsoft (CVE-2026-45659)

Microsoft has released patches for a high-severity remote code execution vulnerability (CVE-2026-45659) in SharePoint that may be exploited in low-complexity attacks. It …

Microsoft SharePoint
CISA warns of active exploitation of Microsoft SharePoint vulnerability (CVE-2026-20963)

CVE-2026-20963, a remote code execution (RCE) SharePoint vulnerability Microsoft fixed in January 2026, is being exploited by attackers. The confirmation comes from the US …

energy sector
Energy sector orgs targeted with AiTM phishing campaign

Organizations in the energy sector are being targeted with phishing emails aimed at compromising enterprise accounts, Microsoft warns. The attack campaign The attacks started …

ransomware
Croatian research institute confirms ransomware attack via ToolShell vulnerabilities

The Ruđer Bošković Institute (RBI), the largest Croatian science and technology research institute, has confirmed that it was the one of “at least 9,000 institutions …

Patch Tuesday
Microsoft fixes “BadSuccessor” Kerberos vulnerability (CVE-2025-53779)

For August 2025 Patch Tuesday, Microsoft has released security updates resolving 100+ security vulnerabilities in its various solutions, including a relative path traversal …

Patch Tuesday
August 2025 Patch Tuesday forecast: Try, try again

July turned into a surprisingly busy month. It started slowly with a fairly ‘calm’ Patch Tuesday as I forecasted in my last blog. Although there were 130 new CVEs addressed …

Microsoft SharePoint
Storm-2603 spotted deploying ransomware on exploited SharePoint servers

One of the groups that, in the past few weeks, has been exploiting vulnerabilities in on-prem SharePoint installation has been observed deploying Warlock ransomware, Microsoft …

SharePoint
Microsoft pins on-prem SharePoint attacks on Chinese threat actors

This is a developing story, new update here: Storm-2603 spotted deploying ransomware on exploited SharePoint servers As Microsoft continues to update its customer guidance for …

Microsoft SharePoint
Microsoft SharePoint servers under attack via zero-day vulnerability (CVE-2025-53770)

This is a developing story, new update here: Microsoft pins on-prem SharePoint attacks on Chinese threat actors Attackers are exploiting a zero-day variant (CVE-2025-53770) of …

Patch Tuesday
Microsoft fixes critical wormable Windows flaw (CVE-2025-47981)

For July 2025 Patch Tuesday, Microsoft has released patches for 130 vulnerabilities, among them one that’s publicly disclosed (CVE-2025-49719) and a wormable RCE bug on …

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