CVE-2021-20839 describes an XML External Entity (XXE) vulnerability in Antenna House Office Server Document Converter versions V7.2MR4 and earlier, and V7.1MR7 and earlier. This flaw allows a remote, unauthenticated attacker to trigger a denial-of-service (DoS) condition on other servers by processing a specially crafted XML document. Rated with a CVSS score of 6.5 (Medium), the vulnerability has a network attack vector, low attack complexity, and high impact on availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 5.2CPE matchmatch criteria | cpe:2.3:a:antennahouse:office_server_document_converter:*:*:*:*:*:*:*:* | ||
5.2CPE matchmatch criteria | cpe:2.3:a:antennahouse:office_server_document_converter:5.2:-:*:*:*:*:*:* | ||
6.0CPE matchmatch criteria | cpe:2.3:a:antennahouse:office_server_document_converter:6.0:-:*:*:*:*:*:* | ||
6.0CPE matchmatch criteria | cpe:2.3:a:antennahouse:office_server_document_converter:6.0:mr1:*:*:*:*:*:* | ||
6.0CPE matchmatch criteria | cpe:2.3:a:antennahouse:office_server_document_converter:6.0:mr2:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.