CVE-2021-20839

MEDIUM

Office Server Document Converter <7.2MR4, <7.1MR7 - DoS

Title source: llm

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 to the other servers by processing a specially crafted XML document.

References (2)

Core 2

Core References

Patch, Vendor Advisory x_refsource_misc

https://www.antenna.co.jp/news/2021/osdc72-20211027.html

Third Party Advisory x_refsource_misc

https://jvn.jp/en/jp/JVN33453839/index.html

Scores

CVSS v3 6.5

EPSS 0.0110

EPSS Percentile 61.3%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Details

CWE

CWE-611

Status published

Products (7)

antennahouse/office_server_document_converter 5.2

antennahouse/office_server_document_converter 6.0 (3 CPE variants)

antennahouse/office_server_document_converter 6.1 (5 CPE variants)

antennahouse/office_server_document_converter 7.0 (4 CPE variants)

antennahouse/office_server_document_converter 7.1 (4 CPE variants)

antennahouse/office_server_document_converter 7.2 (5 CPE variants)

antennahouse/office_server_document_converter < 5.2

Published Nov 01, 2021

Tracked Since Feb 18, 2026