Russian hackers exploit Exchange OWA zero-day for long-term mailbox access

The Russian state-sponsored hacking group Laundry Bear, also known as Void Blizzard, is exploiting an Exchange Outlook Web Access vulnerability in email campaigns to deliver a sophisticated backdoor called OWAReaper. [...]

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https://www.bleepingcomputer.com/news/security/russian-hackers-exploit-exchange-owa-zero-day-for-long-term-mailbox-access/

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https://www.bleepingcomputer.com/news/security/russian-hackers-exploit-exchange-owa-zero-day-for-long-term-mailbox-access/

author_name

Ionut Ilascu

id: 2300
uid: OMa6z
insdate: 2026-07-30 00:10:05
title: Russian hackers exploit Exchange OWA zero-day for long-term mailbox access
additional: The Russian state-sponsored hacking group Laundry Bear, also known as Void Blizzard, is exploiting an Exchange Outlook Web Access vulnerability in email campaigns to deliver a sophisticated backdoor called OWAReaper. [...]
category: Cybersecurity
md5:
guid: https://www.bleepingcomputer.com/news/security/russian-hackers-exploit-exchange-owa-zero-day-for-long-term-mailbox-access/
source_url: https://www.bleepingcomputer.com/news/security/russian-hackers-exploit-exchange-owa-zero-day-for-long-term-mailbox-access/
updated:
image:
author_name: Ionut Ilascu
author_link:
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