VulnPulse

← Threat Actor Index

Laundry Bear

aka Void Blizzard, CL-STA-1114, TA488

Espionage

A Russian state-backed espionage group identified in 2024. It breaks into email at organizations in NATO countries and Ukraine with stolen passwords, and from 2025 also used an unknown Zimbra mail flaw.

Alert level
2/ 5
Reports & advisories (90 days)
0
Known exploited CVEs
1
Personal data leaked (disclosed)
None confirmed

Attribution

Exploited vulnerabilities and targeted products

ZimbraMicrosoft

CVE-2025-66376

If you run any of these products, first make sure they are updated to a fixed version.

How they attack

Entry

Logging in with stolen passwords

Like buying a genuine copied key on the black market and walking in the front door.

Entry

Fake sign-in pages

Like building a look-alike front desk at an address one letter off and having visitors fill in their pass.

Entry

Mail that triggers when merely opened

Like an envelope that releases a tiny copier the moment it is opened.

Goal

Bulk-collecting mailboxes

Like emptying three months of letters from the mailbox in one go.

Sources

Attributions are quoted as assessed by governments and security vendors. VulnPulse does not make attributions itself.

Leak counts only add up figures disclosed by the affected companies or authorities, never the attackers' own claims. We do not list victim names or link to leak sites.

The alert level is calculated automatically from reports and advisories in the last 90 days, known exploited vulnerabilities, and whether the group has targeted Japan.

Updated 2026-10-23 · daily