High 8.8Known exploited (CISA KEV)Published Dec 22, 2025

CVE-2025-68645A 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 RestFil…

Updated under an hour ago (2026-10-19 08:20 UTC)

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It affects synacor zimbra_collaboration_suite. Add what you run to find out whether that includes you.

CISA lists it as known exploited since Jan 22, 2026; federal agencies had to remediate by Feb 12, 2026. Treat that date as your deadline.

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Every CVE for synacor zimbra_collaboration_suite

Exploited in the last 30 days

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: 8.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-98
Known exploited: Added to CISA KEV Jan 22, 2026; federal remediation due Feb 12, 2026Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
EPSS (exploitation in the next 30 days): 48.87% (percentile 99)
Assigned by: mitre
NVD analysis: Analyzed
Record last updated: Feb 26, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

synacor zimbra_collaboration_suite synacor:zimbra_collaboration_suite	from 10.0.0 before 10.0.18; from 10.1.0 before 10.1.13	NVD

References

https://wiki.zimbra.com/wiki/Security_Centerrelease-notes, vendor-advisory
https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policyproduct
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-68645us-government-resource

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.