SharePoint Zero-Day Vulnerability

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Microsoft, SharePoint

Microsoft SharePoint zero-day breach hits on-prem servers

Attackers are exploiting a previously unknown vulnerability in Microsoft SharePoint Server, with security researchers confirming dozens of servers compromised globally since attacks began on July 18.

· 3d · on MSN

New zero-day bug in Microsoft SharePoint under widespread attack

· 3d · on MSN

Microsoft Sharepoint server vulnerability puts an estimated 10,000 organizations at risk

· 1d

Microsoft fixes three SharePoint zero-day exploits used in series of cyberattacks - how to patch them

Microsoft has patched two critical zero-day SharePoint security flaws that have already been exploited by hackers to attack vulnerable organizations.

· 1d

US Nuclear Body Among Those Impacted By SharePoint Breech

· 13h

Tally of Microsoft victims surges to 400 as hackers exploit SharePoint flaw

· 22h

Microsoft says some SharePoint server hackers now use ransomware

The disclosure marks a potential escalation in the campaign, which has already hit at least 400 victims, according to Netherlands-based cybersecurity firm Eye Security.

· 21h

Chinese Hackers Are Exploiting Flaws in Widely Used Software, Microsoft Says

· 1d

Microsoft servers hacked by Chinese groups, says tech giant

The Hacker News4d

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 arbitrary code execution over the network.

1don MSN

Hundreds of organizations breached by SharePoint mass-hacks

One of the hacked organizations reportedly includes the U.S. agency responsible for maintaining the country's stockpile of nuclear weapons. China-backed hackers have been observed carrying out the hacks targeting SharePoint servers.

CSO Online15h

Microsoft’s incomplete SharePoint patch led to global exploits by China-linked hackers

A July 8 fix for a critical SharePoint zero-day failed to stop active exploitation, enabling state-backed attackers to breach nearly 100 organizations worldwide.

2don MSN

Microsoft SharePoint vulnerability: Why MS has released a 'zero-day' urgent update and who is at risk

Microsoft has released a critical patch for a security flaw in its SharePoint software. Hackers actively exploited this vulnerability, targeting businesses and US government agencies. The company issued the fix between July 19 and 20.

The Hacker News2d

Hackers Exploit SharePoint Zero-Day Since July 7 to Steal Keys, Maintain Persistent Access

Active SharePoint exploits since July 7 target governments and tech firms globally, risking key theft and persistent access.

Devdiscourse3d

Global SharePoint Cyberattack Exposes Widespread Vulnerabilities

A major cyberespionage operation targeting Microsoft's SharePoint server software has compromised about 100 organizations worldwide. The operation exploits a zero-day vulnerability, allowing hackers to install backdoors on affected servers.

19hon MSN

Microsoft Hack Hits Hundreds of Firms, Agencies as Damage Spreads

Microsoft Corp. said a Chinese hacking group is exploiting security vulnerabilities in the company’s SharePoint servers to deploy ransomware, following a cyberattack discovered last week that has affected hundreds of entities around the world.

1don MSN

China-Backed Hackers Breach U.S. Nuclear Weapons Agency, Microsoft warns

Hackers sponsored by the Chinese state have breached a number of U.S. government institutions, including the agency responsible for overseeing the security of America’s nuclear arsenal, Microsoft warned.