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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. [...]
The threat actor known as EncryptHub is continuing to exploit a now-patched security flaw impacting Microsoft Windows to deliver malicious payloads
The threat actors behind the zero-day exploitation of a recently-patched security vulnerability in Microsoft Windows have been found to deliver two new backdoors called SilentPrism and DarkWisp
Google has released out-of-band fixes to address a high-severity security flaw in its Chrome browser for Windows that it said has been exploited in the wild as part of attacks targeting organizations in Russia. The vulnerability, tracked as CVE-2025-2783, has been described as a case of "incorrect handle provided in unspecified circumstances in Mojo on Windows." Mojo refers to a
A newly patched security flaw impacting Windows NT LAN Manager (NTLM) was exploited as a zero-day by a suspected Russia-linked actor as part of cyber attacks targeting Ukraine
State-sponsored actors continue to exploit CVE-2023-23397, a dangerous no-interaction vulnerability in Microsoft's Outlook email client that was patched in March, in a widespread global campaign.
Military Intelligence Exploits Microsoft Flaw Patched In MarchRussian military intelligence hackers active in Poland are exploiting a patched flaw in Microsoft Outlook, say cyber defenders from Redmond and Warsaw. Microsoft in a Monday post identifies the hackers as Forest Blizzard, also known as APT28 and Fancy Bear.