CVE-2026-33371
CVSS Score
4.3
EPSS Score
0.0%
EPSS Percentile
5th
An issue was discovered in Zimbra Collaboration (ZCS) 10.0 and 10.1. An XML External Entity (XXE) vulnerability exists in the Zimbra Exchange Web Services (EWS) SOAP interface due to improper handling of XML input. An authenticated attacker can submit crafted XML data that is processed by an XML parser with external entity resolution enabled. Successful exploitation may allow disclosure of sensitive local files from the server.
| Vendor | n/a |
| Product | n/a |
| Published | Mar 20, 2026 |
| Last Updated | Mar 23, 2026 |
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Affected Versions
n/a / n/a
n/a
References
wiki.zimbra.com: https://wiki.zimbra.com/wiki/Zimbra_Security_Advisories wiki.zimbra.com: https://wiki.zimbra.com/wiki/Security_Center wiki.zimbra.com: https://wiki.zimbra.com/wiki/Zimbra_Responsible_Disclosure_Policy wiki.zimbra.com: https://wiki.zimbra.com/wiki/Zimbra_Releases/10.1.16#Security_Fixes