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Medium severity6.5NVD Advisory· Published Nov 1, 2021· Updated Jun 17, 2026

CVE-2021-20839

CVE-2021-20839

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

26
  • Antennahouse/Office Server Document Converter23 versions
    cpe:2.3:a:antennahouse:office_server_document_converter:*:*:*:*:*:*:*:*+ 22 more
    • cpe:2.3:a:antennahouse:office_server_document_converter:*:*:*:*:*:*:*:*range: <5.2
    • 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:*:*:*:*:*:*
  • Office Server Document Converter/Office Server Document Converterllm-create
    Range: <=V7.2MR4, <=V7.1MR7
  • Antenna House/Office Server Document Converterllm-fuzzy
    Range: <=V7.2MR4, <=V7.1MR7
  • Antenna House, Inc./Office Server Document Converterv5
    Range: V7.2MR4 and earlier and V7.1MR7 and earlier

Patches

Vulnerability mechanics

References

2

News mentions

0

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