Two noted hacking groups reportedly targeting vulnerable servers.
Chinese state-sponsored threat operations Linen Typhoon have been targeting vulnerable internet-exposed Microsoft SharePoint servers impacted by the disclosed flaws.
Along with the suspected China-based hacking group Storm-2603, the groups have conducted attacks involving both vulnerabilities, reports The Hacker News.
Exploitation of CVE-2025-49704 and the impersonation bug CVE-2025-49706 have allowed malicious actors to circumvent authentication and run remote code to facilitate web shell deployment, subsequently resulting in MachineKey data exfiltration, according to a report from Microsoft.
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Dan Raywood is a B2B journalist with 25 years of experience, including covering cybersecurity for the past 17 years. He has extensively covered topics from Advanced Persistent Threats and nation-state hackers to major data breaches and regulatory changes.
He has spoken at events including 44CON, Infosecurity Europe, RANT Forum, BSides Scotland, Steelcon and the National Cyber Security Show, and served as editor of SC Media UK, Infosecurity Magazine and IT Security Guru. He was also an analyst with 451 Research and a product marketing lead at Tenable.
