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vulnerability

Exploited Zimbra Flaw Highlights Shrinking Window to Patch

A critical vulnerability in Zimbra Unified Communications Suite (ZCS) is being aggressively exploited, prompting CISA to issue a three-day deadline for federal agencies to patch. The flaw, CVE-2026-73570, allows unauthen…

Dark Reading · Aug 24, 2026 High

CVE-2026-73570 CVE-2026-73750 CVE-2025-66376 PO RU LI patching vulnerability remote code execution

threat-intel

Identity Abuse Through Trusted Communication Channels

Threat actors are increasingly leveraging trusted collaboration platforms – like Microsoft Teams and Slack – to conduct sophisticated identity phishing attacks. Instead of relying solely on traditional email phishing, at…

Palo Alto Unit 42 · Aug 20, 2026 High

PO NO identity phishing collaboration platforms social engineering

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cert poland

Exploited Zimbra Flaw Highlights Shrinking Window to Patch

Identity Abuse Through Trusted Communication Channels