CVE-2020-28026

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

Exim 4 before 4.94.2 has Improper Neutralization of Line Delimiters, relevant in non-default configurations that enable Delivery Status Notification (DSN). Certain uses of ORCPT= can place a newline into a spool header file, and indirectly allow unauthenticated remote attackers to execute arbitrary commands as root.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected software

No affected versions have been published.

Timeline

Published
May 6, 2021
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2020

CVE-2020-28038.3Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE (component: Libraries). Supported versions that are affected are JaCVE-2020-280307.5In Wireshark 3.2.0 to 3.2.7, the GQUIC dissector could crash. This was addressed in epan/dissectors/packet-gquic.c by correcting the implemeCVE-2020-280314.3eramba through c2.8.1 allows HTTP Host header injection with (for example) resultant wkhtml2pdf PDF printing by authenticated users.CVE-2020-280329.8WordPress before 5.5.2 mishandles deserialization requests in wp-includes/Requests/Utility/FilteredIterator.php.CVE-2020-280337.5WordPress before 5.5.2 mishandles embeds from disabled sites on a multisite network, as demonstrated by allowing a spam embed.CVE-2020-280346.1WordPress before 5.5.2 allows XSS associated with global variables.CVE-2020-280359.8WordPress before 5.5.2 allows attackers to gain privileges via XML-RPC.CVE-2020-280369.8wp-includes/class-wp-xmlrpc-server.php in WordPress before 5.5.2 allows attackers to gain privileges by using XML-RPC to comment on a post.CVE-2020-280379.8is_blog_installed in wp-includes/functions.php in WordPress before 5.5.2 improperly determines whether WordPress is already installed, whichCVE-2020-280386.1WordPress before 5.5.2 allows stored XSS via post slugs.CVE-2020-280399.1is_protected_meta in wp-includes/meta.php in WordPress before 5.5.2 allows arbitrary file deletion because it does not properly determine whCVE-2020-28045.9Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Memcached). Supported versions that are affected are 5.6.47 an