CVE-2025-53771

Wer einen Sharepoint-Server betreibt, sollte dringend handeln. Hacker hebeln derzeit aktiv einen Patch für eine kritische Sicherheitslücke aus. (<a href="https://www.golem.de/specials/sicherheitsluecke/">Sicherheitslücke</a>, <a href="https://www.golem.de/specials/microsoft/">Microsoft</a>) <img alt="" height="1" src="https://cpx.golem.de/cpx.php?class=17&amp;aid=198299&amp;page=1&amp;ts=1753081921" width="1" />

Microsoft on Sunday released security patches for an actively exploited security flaw in SharePoint and also disclosed details of another vulnerability that it said has been addressed with "more robust protections." The tech giant acknowledged it's "aware of active attacks targeting on-premises SharePoint Server customers by exploiting vulnerabilities partially addressed by the July Security

A critical security vulnerability in Microsoft SharePoint Server has been weaponized as part of an "active, large-scale" exploitation campaign. The zero-day flaw, tracked as CVE-2025-53770 (CVSS score: 9.8), has been described as a variant of CVE-2025-49704 (CVSS score: 8.8), a code injection and remote code execution bug in Microsoft SharePoint Server that was addressed by the tech giant as

Ein entfernter anonymer oder authentifizierter Angreifer kann mehrere Schwachstellen in Microsoft SharePoint Server 2019, Microsoft SharePoint Subscription Edition und Microsoft SharePoint Server 2016 ausnutzen, um beliebigen Code auszuführen und Spoofing-Angriffe durchzuführen.

Even in well-secured environments, attackers are getting in—not with flashy exploits, but by quietly taking advantage of weak settings, outdated encryption, and trusted tools left unprotected. These attacks don’t depend on zero-days. They work by staying unnoticed—slipping through the cracks in what we monitor and what we assume is safe. What once looked suspicious now blends in, thanks to

Eine kritische Zero-Day-Schwachstelle in Microsoft SharePoint gefährdet Unternehmen weltweit. Zwei Behörden in den USA sind bereits angegriffen worden. Microsoft arbeitet an Lösungen für das Problem.

The recently disclosed critical Microsoft SharePoint vulnerability has been under exploitation as early as July 7, 2025, according to findings from Check Point Research. The cybersecurity company said it observed first exploitation attempts targeting an unnamed major Western government, with the activity intensifying on July 18 and 19, spanning government, telecommunications, and software