Is CVE-2026-73573 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-73573?

CVE-2026-73573 has a CVSS v3 severity of LOW (3.1).

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CVE-2026-73573

Description

In Zimbra Collaboration (ZCS) before 10.1.17, a path traversal vulnerability exists in the Zimbra Briefcase document editing functionality due to improper validation of the packages parameter. An authenticated attacker can exploit this vulnerability by supplying a crafted path traversal sequence, potentially allowing unauthorized disclosure of sensitive files within the web application directory.