CVE-2025-1055

CVE

Threat entity extracted from intelligence sources

Frequency

occurrences

First Seen

June 16, 2026

Last Seen

June 16, 2026

API

Exploited in Wild

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Ransomware Use

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Public Exploits

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Attack Vector

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Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

DragonForce Ransomware Exploits Microsoft Teams for Covert C2 Communications69.6

The DragonForce ransomware group has been observed using a custom malware, Backdoor.Turn, to conceal command-and-control (C&C) traffic within Microsoft Teams' relay infrastructure. This sophisticated technique allows attackers to mask their communications as legitimate Microsoft traffic, making dete...