CVE-2020-11462

HIGH

OpenVPN Access Server < 2.7.0 and 2.8.x < 2.8.3 - Denial of Service via XML Entity Expansion

Title source: llm
STIX 2.1

Description

An issue was discovered in OpenVPN Access Server before 2.7.0 and 2.8.x before 2.8.3. With the full featured RPC2 interface enabled, it is possible to achieve a temporary DoS state of the management interface when sending an XML Entity Expansion (XEE) payload to the XMLRPC based RPC2 interface. The duration of the DoS state depends on available memory and CPU speed. The default restricted mode of the RPC2 interface is NOT vulnerable.

References (1)

Core 1
Core References

Scores

CVSS v3 7.5
EPSS 0.0125
EPSS Percentile 65.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-776
Status published
Products (1)
openvpn/openvpn_access_server < 2.7.0
Published May 04, 2020
Tracked Since Feb 18, 2026