SharePoint Zero-Day Exploitation

News

Hacker Used SharePoint Flaw to Breach US Nuclear Agency

Mass Exploitation: Hackers Hit Zero-Day Flaw in Microsoft's SharePoint

The newly discovered flaw in Microsoft's SharePoint software has allowed hackers to target dozens of companies and organizations. Only a partial fix has been issued.

PCMag Australia on MSN · 1h

Report: Hacker Used SharePoint Flaw to Breach US Nuclear Agency

The Department of Energy, which oversees the agency that manages the US nuclear weapons stockpile, confirms it was affected by the SharePoint bug, but says it was 'minimally impacted.'

Engadget on MSN · 5h

US nuclear weapons agency breached using Microsoft SharePoint hack

The US government agency in charge of designing and maintaining nuclear weapons was among those breached by a hack of Microsoft's SharePoint server software.

US nuclear weapons agency reportedly hacked in SharePoint attacks

Unknown threat actors have reportedly breached the National Nuclear Security Administration's (NNSA) network in attacks ...

The Hacker News1d

Critical Unpatched SharePoint Zero-Day Actively Exploited, Breaches 75+ Company Servers

The U.S. Cybersecurity and Infrastructure Security Agency (CISA), in an alert, said it's aware of active exploitation of CVE-2025-53770, which enables unauthenticated access to SharePoint systems and ...

CRN2h

Victims Mounting In Microsoft SharePoint Attacks: Researchers

More than 400 systems have been compromised so far in the widespread cyberattacks exploiting vulnerabilities in Microsoft ...

Microsoft SharePoint zero-day exploited in RCE attacks, no patch available

Critical zero-day vulnerabilities in Microsoft SharePoint, tracked as CVE-2025-53770 and CVE-2025-53771, have been actively ...

Redmondmag.com1d

SharePoint Zero Day Vulnerability Exploited in Government System Breaches

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) issued an alert Sunday detailing active exploitation of a ...

Krebs on Security2d

Microsoft Fix Targets Attacks on SharePoint Zero-Day

Microsoft also has issued a patch for a related SharePoint vulnerability — CVE-2025-53771; Microsoft says there are no signs ...

SecurityWeek12h

Microsoft Says Chinese APTs Exploited ToolShell Zero-Days Weeks Before Patch

Microsoft says the Chinese threat actors Linen Typhoon, Violet Typhoon, and Storm-2603 have been exploiting the ToolShell ...

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