Microsoft SharePoint’s Zero-Day Drama: CISA’s Urgent Patch Alert!
Cybersecurity’s latest drama: a Microsoft SharePoint flaw with a CVSS score of 9.8 now stars in CISA’s Known Exploited Vulnerabilities catalog. Dubbed “ToolShell,” it’s the summer blockbuster threat actors have been waiting for. Remember, folks, it only affects on-premises servers, so if you’re still holding onto those, it’s time to patch up!
Hot Take:
Beware SharePoint: It’s not just for sharing your TPS reports anymore! With the latest flaw, it’s more like SharePanic! CISA’s ringing the alarm bells, urging you to patch it up before it becomes the hottest property on the cybercriminal block. Looks like the IT department’s going to have a busier summer than a lifeguard at a kiddie pool!
Key Points:
- CISA adds Microsoft SharePoint vulnerability CVE-2025-53770 to its Known Exploited Vulnerabilities catalog.
- Microsoft’s on-premises SharePoint Servers are under attack with two zero-day flaws.
- The vulnerability allows unauthenticated, remote code execution through deserialization of untrusted data.
- Mitigation involves enabling AMSI integration and deploying Microsoft Defender.
- Federal agencies must resolve these vulnerabilities by July 21, 2025.
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