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SafeBreach Coverage for CVE-2025-53770: ToolShell Exploits Targeting Microsoft SharePoint
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In This Episode
In this urgent Cyber Resilience Brief, host Tova Dvorin is joined by SafeBreach experts Adrian Culley and Tomer Bar to break down CVE-2025-53770, a critical zero-day vulnerability actively exploited in Microsoft SharePoint Server. Known as part of the ToolShell attack chain, this deserialization flaw allows unauthenticated remote code execution and persistence — and it’s already being used in the wild.
We discuss:
- What makes this vulnerability so dangerous? (hint: there’s no patch for SharePoint 2016 yet).
- Why Microsoft is advising customers to assume breach.
- How SafeBreach Labs responded within 24 hours with new BAS coverage Specific indicators of compromise (IoCs) and mitigation advice.
- Why this attack demands urgent attention from security teams and CISOs alike.
Whether you’re a SafeBreach customer or just trying to stay ahead of emerging threats, this episode delivers the critical insights you need — fast. 🔗 For more information on today’s CVE, check out our post on the SafeBreach blog.
