Winter Vivern used Zimbra's vulnerability to target European governments

Russian-Speaking Hack Group Winter Vivern Attacks Governments in Europe and Asia

New Cyberattack From Winter Vivern Exploits a Zero-Day Vulnerability in Roundcube Webmail

APT Winter Vivern Resurfaces

Threat Actor Targets Taps Zimbra Bug CVE-2022-27926

Winter Vivern used Zimbra's vulnerability to target European governments

Webmail portals of NATO-aligned governments in Europe hacked by TA473 hackers using known Zimbra vulnerability - Industrial Cyber

APT group Winter Vivern exploits Zimbra webmail flaw to target government entities

Zimbra Vulnerability Exploited to Gain Access to Email Mailboxes

APT Winter Vivern Exploits New Roundcube 0-Day to Target European Entities

Mass-spreading campaign targeting Zimbra users