vulnerability
Zimbra Collaboration: CVE-2026-33371: Collaboration: Improper Restriction of XML External Entity Reference
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:L/Au:S/C:P/I:N/A:N) | Mar 20, 2026 | Mar 23, 2026 | Mar 25, 2026 |
Severity
4
CVSS
(AV:N/AC:L/Au:S/C:P/I:N/A:N)
Published
Mar 20, 2026
Added
Mar 23, 2026
Modified
Mar 25, 2026
Description
Addressed an authenticated XXE vulnerability in the EWS SOAP endpoint.
Solution
zimbra-collaboration-upgrade-latest
References
- CWE-611
- CVE-2026-33371
- https://attackerkb.com/topics/CVE-2026-33371
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-13696
- https://wiki.zimbra.com/wiki/Security_Center
- https://wiki.zimbra.com/wiki/Zimbra_Releases/10.1.16#Security_Fixes
- https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy
- https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories
Rapid7 Labs
2026 Global Threat Landscape Report
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