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APT group Winter Vivern exploits Zimbra webmail flaw to target government entities
Threat Actors
March 31, 2023
CSO Online
An APT group known in the security industry as Winter Vivern has been exploiting a vulnerability in the Zimbra Collaboration software to gain access to mailboxes from government agencies in several European countries.
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Winter Vivern
Zimbra Collaboration Suite
CVE-2022-27926
TA473
Reflected XSS Vulnerability
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