CVE-2026-73576
An attacker can exploit multiple vulnerabilities in Synacor Zimbra to disclose information, perform a cross-site scripting attack and bypass security measures.
CSIRTS triage
- What
- Multiple vulnerabilities in Zimbra allow information disclosure, cross-site scripting, and security bypass attacks.
- Who is affected
- All Zimbra deployments are potentially affected.
- Urgency
- High severity; no active exploitation reported but multiple attack vectors present warrant rapid remediation.
- Action
- Apply vendor security patches addressing CVE-2026-73571 through CVE-2026-73576 immediately.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.19% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 9% of all EPSS-scored CVEs.
Advisory coverage (2)
- high[UPDATE] [high] Synacor Zimbra: Multiple vulnerabilitiescert-bund · 2026-08-14
- mediumCVE-2026-73576: In Zimbra Collaboration (ZCS) before 10.1.17, weak cryptographic key generation vulnerability …nvd · 2026-08-13
External references
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