CVE-2020-25697
HIGHX.org X Server - Missing Authentication for Critical Function
Title source: llmDescription
A privilege escalation flaw was found in the Xorg-x11-server due to a lack of authentication for X11 clients. This flaw allows an attacker to take control of an X application by impersonating the server it is expecting to connect to.
References (4)
Core 4
Core References
Mailing List, Third Party Advisory mailing-list
x_refsource_mlist
http://www.openwall.com/lists/oss-security/2020/11/09/3
Mailing List mailing-list
x_refsource_mlist
https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E
Mailing List, Third Party Advisory x_refsource_misc
https://seclists.org/oss-sec/2020/q4/105
Issue Tracking, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=1895295
Scores
CVSS v3
7.0
EPSS
0.0033
EPSS Percentile
24.4%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-306
Status
published
Products (1)
x.org/x_server
Published
May 26, 2021
Tracked Since
Feb 18, 2026