Ukraine's Computer Emergency Response Team (CERT) says that Russian hackers are exploiting CVE-2026-21509, a recently patched vulnerability in multiple versions of Microsoft Office. [...]
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source https://www.bleepingcomputer.com/news/security/russian-hackers-exploit-recently-patched-microsoft-office-bug-in-attacks/
source https://www.bleepingcomputer.com/news/security/russian-hackers-exploit-recently-patched-microsoft-office-bug-in-attacks/