Russian Espionage Group Exploited Zimbra Zero-Day to Steal Mail and 2FA Codes

A Russian state-supported espionage group spent months reading Western mailboxes through a then-unknown flaw in Zimbra's webmail client.

The payload goes after the last 90 days of email, the organization's entire email directory, the password saved in the browser and the codes kept for two-factor recovery. Opening the message was enough to start it.

The NSA, CISA and partner agencies published

guid

https://thehackernews.com/2026/07/russian-espionage-group-exploited.html

source_url

https://thehackernews.com/2026/07/russian-espionage-group-exploited.html

id: 2199
uid: MXvEH
insdate: 2026-07-23 19:10:05
title: Russian Espionage Group Exploited Zimbra Zero-Day to Steal Mail and 2FA Codes
additional: A Russian state-supported espionage group spent months reading Western mailboxes through a then-unknown flaw in Zimbra's webmail client.

The payload goes after the last 90 days of email, the organization's entire email directory, the password saved in the browser and the codes kept for two-factor recovery. Opening the message was enough to start it.

The NSA, CISA and partner agencies published
category: Cybersecurity
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guid: https://thehackernews.com/2026/07/russian-espionage-group-exploited.html
source_url: https://thehackernews.com/2026/07/russian-espionage-group-exploited.html
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