EUVD-2026-13696

| CVE-2026-33371 MEDIUM
2026-03-20 mitre
4.3
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

3
Analysis Generated
Mar 20, 2026 - 14:15 vuln.today
EUVD ID Assigned
Mar 20, 2026 - 14:15 euvd
EUVD-2026-13696
CVE Published
Mar 20, 2026 - 00:00 nvd
MEDIUM 4.3

Tags

XXE Microsoft

Description

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.

Analysis

An XML External Entity (XXE) vulnerability exists in Zimbra Collaboration Server (ZCS) versions 10.0 and 10.1 within the Exchange Web Services (EWS) SOAP interface due to improper XML input handling. An authenticated attacker can submit crafted XML payloads to an XML parser with external entity resolution enabled, potentially disclosing sensitive local files from the server. …

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Remediation

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

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Priority Score

22
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +22
POC: 0

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EUVD-2026-13696 vulnerability details – vuln.today
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