Vulnerability · Published Nov 1, 2021 · Assigned by jpcert
CVE-2021-20839
Medium 6.5
In plain English
A medium-severity security flaw in Office Server Document Converter from Antenna House, Inc.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 67% of all known vulnerabilities).
Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)1.1%top 33.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Antenna House, Inc. | Office Server Document Converter | V7.2MR4 and earlier and V7.1MR7 and earlier |
References
- https://www.antenna.co.jp/news/2021/osdc72-20211027.html x_refsource_MISC
- https://jvn.jp/en/jp/JVN33453839/index.html x_refsource_MISC