VULNERABILITY INTELLIGENCE

CVE-2021-20839

CVSS score6.5 MEDIUM
EPSS probability1.14%
CISA KEVNot currently listed
Published2021-11-01
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

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.

Weakness classification

  • nvd@nist.gov: CWE-611

Primary references