CVE-2020-13950

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

Apache HTTP Server versions 2.4.41 to 2.4.46 mod_proxy_http can be made to crash (NULL pointer dereference) with specially crafted requests using both Content-Length and Transfer-Encoding headers, leading to a Denial of Service

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

Affected software

No affected versions have been published.

Timeline

Published
Jun 10, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2020

CVE-2020-139517.5Attackers can use public NetTest web service of Apache OpenMeetings 4.0.0-5.0.0 to organize denial of service attack.CVE-2020-139528.1In the course of work on the open source project it was discovered that authenticated users running queries against Hive and Presto databaseCVE-2020-139535.3In Apache Tapestry from 5.4.0 to 5.5.0, crafting specific URLs, an attacker can download files inside the WEB-INF folder of the WAR being ruCVE-2020-139546.1By default, Apache CXF creates a /services page containing a listing of the available endpoint names and addresses. This webpage is vulnerabCVE-2020-139555.9HttpUtils#getURLConnection method disables explicitly hostname verification for HTTPS connections making clients vulnerable to man-in-the-miCVE-2020-139565.3Apache HttpClient versions prior to version 4.5.13 and 5.0.3 can misinterpret malformed authority component in request URIs passed to the liCVE-2020-139579.8Apache Solr versions 6.6.0 to 6.6.6, 7.0.0 to 7.7.3 and 8.0.0 to 8.6.2 prevents some features considered dangerous (which could be used for CVE-2020-139587.8A vulnerability in Apache OpenOffice scripting events allows an attacker to construct documents containing hyperlinks pointing to an executaCVE-2020-139596.1The default error page for VelocityView in Apache Velocity Tools prior to 3.1 reflects back the vm file that was entered as part of the URL.CVE-2020-13967.8An elevation of privilege vulnerability exists when Windows improperly handles calls to Advanced Local Procedure Call (ALPC).An attacker whoCVE-2020-139607.5D-Link DSL 2730-U IN_1.10 and IN_1.11 and DIR-600M 3.04 devices have the domain.name string in the DNS resolver search path by default, whicCVE-2020-139616.5Strapi before 3.0.2 could allow a remote authenticated attacker to bypass security restrictions because templates are stored in a global var
CVE-2020-13950: High severity, CVSS 7.5 | Vulnix