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CVE-2025-68645

Published: Dec 22, 2025Updated: Jan 23, 2026 Sources: CVE List NVD BDUCWE-98
NVD MITRE
8.8CVSSHIGH
EPSS Score
31.8%
Top 1.9%
CISA KEV
Active Exploitation
Since Jan 22, 2026
Exploits
No Known Exploits
Remediation
Patch Available
Am I actually vulnerable?1 Nuclei template available — see how to check your systems. How to verify

Description

A Local File Inclusion (LFI) vulnerability exists in the Webmail Classic UI of Zimbra Collaboration (ZCS) 10.0 and 10.1 because of improper handling of user-supplied request parameters in the RestFilter servlet. An unauthenticated remote attacker can craft requests to the /h/rest endpoint to influence internal request dispatching, allowing inclusion of arbitrary files from the WebRoot directory.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-98

Affected Products

n/an/a
Zimbra Collaboration SuiteZimbra Inc.
Mixed
Communications / email-server-client
zimbra collaboration suitesynacor
On-premWeb App
Communications / email-server-client
zimbra inc.commercialUSCommunications
synacorcommercialUSCommunicationsaka synacor

Exploitability

CISA Known Exploited Vulnerability
Added to KEV:Jan 22, 2026
Remediation due:Feb 12, 2026

Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Official Patch Available

References

https://wiki.zimbra.com/wiki/Security_Center
wiki.zimbra.com
https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy
wiki.zimbra.com
https://www.cisa.gov/sites/default/files/csv/known_exploited_vulnerabilities.csv
cisa.gov
and 1 more references View all →

Timeline

Published
Dec 22, 2025
Added to CISA KEV
Jan 22, 2026
Last Updated
Jan 23, 2026

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