Frequency
3
occurrences
First Seen
July 23, 2026
Last Seen
July 24, 2026
Related Threat Clusters
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Russian Hackers Exploit Zimbra Zero-Day for Espionage Campaign
Since July 2025, Russian state-backed hackers, known as Laundry Bear, have exploited a zero-click vulnerability (CVE-2025-66376) in the Zimbra Collaboration Suite to infiltrate Western government and commercial…
82 articles · Updated July 23, 2026 -
APT28 Exploits Roundcube Vulnerabilities in Targeted Cyber Espionage Campaign
APT28 (Fancy Bear) has been linked to Operation Roundish, utilizing a comprehensive Roundcube exploitation toolkit against Ukrainian government targets. The toolkit, discovered in January 2026, includes XSS payloads, a…
3 articles · Updated July 23, 2026
Recent Intelligence Reports
- Operation Roundpress — www.welivesecurity.com · July 24, 2026
- Operation Roundish — hunt.io · July 24, 2026
- ta458 roundpress exploits — Proofpoint · July 23, 2026