Winter Vivern APT exploited zero-day in Roundcube webmail software in recent attacks

Russia-linked threat actor Winter Vivern has been observed exploiting a zero-day flaw in Roundcube webmail software. Russian APT group Winter Vivern (aka TA473) has been observed exploiting a zero-day flaw in Roundcube webmail software on October 11, 2023. ESET researchers pointed out that is a different vulnerability than CVE-2020-35730, that the group exploited in other attacks. The Winter […]

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