Pierluigi Paganini
August 22, 2026
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Zimbra Collaboration Suite (ZCS) flaw to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added the Zimbra Collaboration Suite (ZCS) flaw CVE-2026-73570 to its Known Exploited Vulnerabilities (KEV) catalog. CERT Polska, Poland’s national computer emergency response team, confirmed this week that threat actors […]
Pierluigi Paganini
August 21, 2026
CERT Polska confirmed active exploitation of CVE-2026-73570, a critical unauthenticated RCE in Zimbra Collaboration Suite patched on July 20. CERT Polska, Poland’s national computer emergency response team, confirmed this week that threat actors are actively exploiting a critical vulnerability in Zimbra Collaboration Suite tracked as CVE-2026-73570. The flaw allows unauthenticated remote code execution and was […]
Pierluigi Paganini
August 18, 2023
A massive social engineering campaign is targeting users of the Zimbra Collaboration email server to steal their login credentials. ESET researchers uncovered a mass-spreading phishing campaign targeting users of the Zimbra Collaboration email server since April 2023. Zimbra Collaboration is an open-core collaborative software platform. The campaign is still ongoing and is targeting a wide range of […]
Pierluigi Paganini
July 27, 2023
Zimbra addressed a zero-day vulnerability exploited in attacks aimed at Zimbra Collaboration Suite (ZCS) email servers. Two weeks ago Zimbra urged customers to manually install updates to fix a zero-day vulnerability, now tracked as CVE-2023-38750, that is actively exploited in attacks against Zimbra Collaboration Suite (ZCS) email servers. Zimbra Collaboration Suite is a comprehensive open-source messaging and […]
Pierluigi Paganini
July 13, 2023
Zimbra has released updates to address a zero-day vulnerability actively exploited in attacks aimed at Zimbra Collaboration Suite (ZCS) email servers. Zimbra urges customers to manually install updates to fix a zero-day vulnerability that is actively exploited in attacks against Zimbra Collaboration Suite (ZCS) email servers. Zimbra Collaboration Suite is a comprehensive open-source messaging and […]
Pierluigi Paganini
October 08, 2022
Threat actors are exploiting an unpatched severe remote code execution flaw (CVE-2022-41352) in the Zimbra collaboration platform. Researchers from Rapid7 are warning of the exploitation of unpatched zero-day remote code execution vulnerability, tracked as CVE-2022-41352, in the Zimbra Collaboration Suite. Rapid7 has published technical details, including a proof-of-concept (PoC) code and indicators of compromise (IoCs) […]
