Vulnerabilities in Zimbra Collaboration software
During its own research, CERT Polska has found 2 XSS vulnerabilities (CVE-2026-66911 and CVE-2026-66912) in Zimbra Collaboration software.
EPSS 0.01 CVE-2026-66911 CVE-2026-66912 Zimbra PL
During its own research, CERT Polska has found 2 XSS vulnerabilities (CVE-2026-66911 and CVE-2026-66912) in Zimbra Collaboration software.
EPSS 0.01 CVE-2026-66911 CVE-2026-66912 Zimbra PL
When we are building detections for various threats, we regularly run the exploits on representative systems to help us build high-quality rules. The Common Vulnerabilities and Exposures (CVE) entry CVE-2026-73570 for Zimbra is no exception. Zimbra is a widely used enterprise email and collaboration software platform, known for its SMTP platform, among other services. SMTP plays a critical role in the infrastructure of many organizations by providing email services that often include either…
KEV ✓ EPSS 0.72 CVE-2026-73570 Zimbra Synacor veřejná správa US IT HU
Rilasciati aggiornamenti di sicurezza per risolvere diverse vulnerabilità, di cui con 4 con gravità “critica”, in Zimbra Collaboration Suite (ZCS), nota piattaforma di collaborazione e-mail sviluppata da Synacor.
EPSS 0.01 CVE-2026-93641 CVE-2026-93642 CVE-2026-93643 CVE-2026-93647 Synacor Zimbra IT
Classification: Critical, Solution: Official Fix, Exploit Maturity: Not Defined, CVSSv3.1: 9.8, CVEs: CVE-2026-93642, CVE-2026-93643, CVE-2026-93647, Summary: CVE-2026-93642 (CVSS: 9.3): An unauthenticated sender can forge a share notification that triggers stored XSS when a signed-in Zimbra Modern recipient clicks Accept Share, allowing the attacker to access mailbox data and act as the victim. CVE-2026-93643 (CVSS: 9.8): When OnlyOffice/Document Editing is available, an unauthenticated remote…
EPSS 0.01 CVSS 9.8 CVE-2026-93642 CVE-2026-93643 CVE-2026-93647 Zimbra FI
Serial Number: AV26-964Date: September 25, 2026 As of September 25, 2026, Zimbra is affected by vulnerabilities in the following product: Zimbra Collaboration Suite (ZCS) (Daffodil) Prior to 10.1.21 The Cyber Centre encourages users and administrators to review the provided web links and apply any necessary updates as they become available. What’s New in Zimbra 10.1.21 (Daffodil) Zimbra Blog - All Things Zimbra
Zimbra CA
CONTEXT La nivelul Directoratului Național de Securitate Cibernetică (DNSC) au fost observate ten...
Zimbra RO
Rilasciati aggiornamenti di sicurezza per risolvere diverse vulnerabilità, di cui due con gravità “alta”, in Zimbra Collaboration, nota piattaforma di collaborazione e-mail sviluppata da Synacor Inc. Tali vulnerabilità, qualora sfruttate, potrebbero consentire a utenti malintenzionati remoti di eseguire codice arbitrario sui sistemi interessati.
KEV ✓ EPSS 0.72 CVE-2026-50054 CVE-2026-73570 Synacor Zimbra IT