Patch Forecast
Amber warning
Patch this week.

CVE-2026-93643

When OnlyOffice/Document Editing is available, an unauthenticated remote attacker with access to an…

Risk score
76/100
CVSS
9.8 v3.1
Exploit chance (30 days)
1.0%
Published
25 Sep 2026

Open in the live forecast Today's forecast

What to know

What it is
When OnlyOffice/Document Editing is available, an unauthenticated remote attacker with access to an existing supported public Briefcase document can abuse unsigned save fields to perform path-traversal writes and execute commands as zimbra.
Affected
See advisory
Fix
Apply the vendor's security update; see the linked advisory.
Exploitation
No known exploitation

Why it is Amber

  • CVSS 9.8 critical
  • Remotely exploitable without logging in

References

Original description

When OnlyOffice/Document Editing is available, an unauthenticated remote attacker with access to an existing supported public Briefcase document can abuse unsigned save fields to perform path-traversal writes and execute commands as zimbra.

Last activity 25 Sep 2026. Patch Forecast updates every hour.