A Türkiye-affiliated espionage threat actor, tracked by Microsoft Threat Intelligence as Marbled Dust (also known as Sea Turtle and UNC1326), has been exploiting a zero-day vulnerability in Output Messenger, a popular multiplatform chat software. Identified as CVE-2025-27920, this directory traversal flaw in the Output Messenger Server Manager application allows authenticated attackers to upload malicious files […]
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