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VULNERABILITIES

CVE-2021-20838 Details

Description

Office Server Document Converter V7.2MR4 and earlier and V7.1MR7 and earlier allows a remote unauthenticated attacker to conduct an XML External Entity (XXE) attack to cause a denial of service (DoS) condition by processing a specially crafted XML document.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://jvn.jp/en/jp/JVN33453839/index.html CVEThird Party Advisory
https://www.antenna.co.jp/news/2021/osdc72-20211027.html CVEPatchVendor Advisory
https://jvn.jp/en/jp/JVN33453839/index.html [email protected]Third Party Advisory
https://www.antenna.co.jp/news/2021/osdc72-20211027.html [email protected]PatchVendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-611Improper Restriction of XML External Entity Reference[email protected]

Affected Products

ProductVersions
antennahouse office server document converter
< 5.2
5.2 -
6.0 -
6.0 mr1
6.0 mr2

CPE

  • cpe:2.3:a:antennahouse:office_server_document_converter:*:*:*:*:*:*:*:*
  • cpe:2.3:a:antennahouse:office_server_document_converter:5.2:-:*:*:*:*:*:*
  • cpe:2.3:a:antennahouse:office_server_document_converter:6.0:-:*:*:*:*:*:*
  • cpe:2.3:a:antennahouse:office_server_document_converter:6.0:mr1:*:*:*:*:*:*
  • cpe:2.3:a:antennahouse:office_server_document_converter:6.0:mr2:*:*:*:*:*:*
  • cpe:2.3:a:antennahouse:office_server_document_converter:6.1:-:*:*:*:*:*:*
  • cpe:2.3:a:antennahouse:office_server_document_converter:6.1:mr2:*:*:*:*:*:*
  • cpe:2.3:a:antennahouse:office_server_document_converter:6.1:mr2:*:*:pro:*:*:*
  • cpe:2.3:a:antennahouse:office_server_document_converter:6.1:mr3:*:*:*:*:*:*
  • cpe:2.3:a:antennahouse:office_server_document_converter:6.1:mr4:*:*:*:*:*:*
  • cpe:2.3:a:antennahouse:office_server_document_converter:7.0:*:*:*:*:*:*:*
  • cpe:2.3:a:antennahouse:office_server_document_converter:7.0:mr1:*:*:*:*:*:*
  • cpe:2.3:a:antennahouse:office_server_document_converter:7.0:mr2:*:*:*:*:*:*
  • cpe:2.3:a:antennahouse:office_server_document_converter:7.0:mr3:*:*:*:*:*:*
  • cpe:2.3:a:antennahouse:office_server_document_converter:7.1:-:*:*:*:*:*:*
  • cpe:2.3:a:antennahouse:office_server_document_converter:7.1:mr1:*:*:*:*:*:*
  • cpe:2.3:a:antennahouse:office_server_document_converter:7.1:mr2:*:*:*:*:*:*
  • cpe:2.3:a:antennahouse:office_server_document_converter:7.1:mr3:*:*:*:*:*:*
  • cpe:2.3:a:antennahouse:office_server_document_converter:7.2:*:*:*:*:*:*:*
  • cpe:2.3:a:antennahouse:office_server_document_converter:7.2:mr1:*:*:*:*:*:*
  • cpe:2.3:a:antennahouse:office_server_document_converter:7.2:mr2:*:*:*:*:*:*
  • cpe:2.3:a:antennahouse:office_server_document_converter:7.2:mr3:*:*:*:*:*:*
  • cpe:2.3:a:antennahouse:office_server_document_converter:7.2:mr4:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2021-20838
NVD Published Date:
Nov 1, 2021
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2021-20838 Details - Not Deferred