CVE-2021-20838

HighCVSS 7.5/10Last modified Jun 17, 2026

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 by processing a specially crafted XML document.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-611

Affected software

No affected versions have been published.

Timeline

Published: Nov 1, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

CVE-2021-208396.5Office Server Document Converter V7.2MR4 and earlier and V7.1MR7 and earlier allows a remote unauthenticated attacker to conduct an XML Exte CVE-2021-20848.2Vulnerability in the Oracle CRM Technical Foundation product of Oracle E-Business Suite (component: Preferences). Supported versions that ar CVE-2021-208406.1Cross-site scripting vulnerability in Booking Package - Appointment Booking Calendar System versions prior to 1.5.11 allows a remote attacke CVE-2021-208416.5Improper access control in Management screen of EC-CUBE 2 series 2.11.2 to 2.17.1 allows a remote authenticated attacker to bypass access re CVE-2021-208426.5Cross-site request forgery (CSRF) vulnerability in EC-CUBE 2 series 2.11.0 to 2.17.1 allows a remote attacker to hijack the authentication o CVE-2021-208435.4Cross-site script inclusion vulnerability in the Web GUI of RTX830 Rev.15.02.17 and earlier, NVR510 Rev.15.01.18 and earlier, NVR700W Rev.15 CVE-2021-208445.7Improper neutralization of HTTP request headers for scripting syntax vulnerability in the Web GUI of RTX830 Rev.15.02.17 and earlier, NVR510 CVE-2021-208458.8Cross-site request forgery (CSRF) vulnerability in Unlimited Sitemap Generator versions prior to v8.2 allows a remote attacker to hijack the CVE-2021-208468.8Cross-site request forgery (CSRF) vulnerability in Push Notifications for WordPress (Lite) versions prior to 6.0.1 allows a remote attacker CVE-2021-208476.1Cross-site scripting vulnerability in Wi-Fi STATION SH-52A (38JP_1_11G, 38JP_1_11J, 38JP_1_11K, 38JP_1_11L, 38JP_1_26F, 38JP_1_26G, 38JP_1_2 CVE-2021-208486.1Cross-site scripting vulnerability in rwtxt versions prior to v1.8.6 allows a remote attacker to inject an arbitrary script via unspecified CVE-2021-20858.2Vulnerability in the Oracle CRM Technical Foundation product of Oracle E-Business Suite (component: Preferences). Supported versions that ar