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#Zimbra

6 stories taggedZimbra.

Illustration: a dimly lit server rack in a data centre, blue and amber status LEDs glowing
Vulnerabilities

Zimbra mail server flaw exploited in the wild, Microsoft warns after weeks of quiet attacks

Microsoft Threat Intelligence says attackers used a specially crafted email to hijack Zimbra Collaboration Suite mail servers, drop web shells and steal mailbox data, before the flaw was patched.

3 min read
A corporate email server room with warning tape cordoning off affected equipment, technicians reviewing security patches on terminal screens, calendar dates sho
Vulnerabilities

Poland's CERT warns of active attacks on critical Zimbra email flaw

CERT Polska says attackers are exploiting CVE-2026-73570 in Zimbra Collaboration Suite. Zimbra patched the bug in version 10.1.20 on 20 July 2026.

3 min read
Composite security threat scene: industrial network switches with flashing indicators, Zimbra email server interface, and Stadler Rail locomotive imagery all vi
Vulnerabilities

Three Security Stories You May Have Missed: Industrial Switches, Russian Email Spying, and a Rail Ransomware Shakedown

Flaws in Siemens industrial network hardware, a Russian espionage campaign targeting Zimbra webmail servers, and a ransomware extortion attempt against Swiss train maker Stadler Rail.

3 min read
A computer screen displaying an opened email in a webmail interface, with malicious code invisibly executing in the background, represented by subtle system pro
Vulnerabilities

Russian Hackers Are Reading Your Email Just by Sending You One: Zimbra Zero-Day Explained

A Kremlin-linked crew tracked as LAUNDRY BEAR is exploiting CVE-2025-66376 in Zimbra webmail to steal 90 days of email the moment a victim opens a booby-trapped message.

4 min read
A business email server room with technicians performing emergency maintenance and applying patches, with Zimbra interface screens visible displaying the comman
Vulnerabilities

Zimbra Patches Six Security Flaws, Including a Bug That Lets Strangers Run Commands on Your Email Server

The business email platform Zimbra has released a batch of fixes covering a serious command-injection flaw and five other vulnerabilities. No attacks in the wild have been confirmed, but the company is urging every customer to update immediately.

3 min read
Illustration: a laptop screen glowing in a dim office, showing a generic webmail inbox interface with one email highlighted
Vulnerabilities

Zimbra Patches Critical Webmail Flaw That Lets Booby-Trapped Emails Run Code

A stored cross-site scripting bug in Zimbra's Classic Web Client can hijack a user's session the moment a rigged email is opened.

3 min read
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