CVE-2017-10971
In the X.Org X server before 2017-06-19, a user authenticated to an X Session could crash or execute code in the context of the X Server by exploiting a stack overflow in the endianness conversion of X Events.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.88%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the X.Org X server before 2017-06-19, a user authenticated to an X Session could crash or execute code in the context of the X Server by exploiting a stack overflow in the endianness conversion of X Events.
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.88% probability · 90th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- x.org/x server
- Source
- cve@mitre.org
EPSS 3.9% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.debian.org/security/2017/dsa-3905
- http://www.securityfocus.com/bid/99546Third Party Advisory, VDB Entry
- https://bugzilla.suse.com/show_bug.cgi?id=1035283Issue Tracking, Third Party Advisory
- https://cgit.freedesktop.org/xorg/xserver/commit/?id=215f894965df5fb0bb45b107d84524e700d2073cMailing List, Third Party Advisory
- https://cgit.freedesktop.org/xorg/xserver/commit/?id=8caed4df36b1f802b4992edcfd282cbeeec35d9dMailing List, Third Party Advisory
- https://cgit.freedesktop.org/xorg/xserver/commit/?id=ba336b24052122b136486961c82deac76bbde455Mailing List, Third Party Advisory
- http://www.debian.org/security/2017/dsa-3905
- http://www.securityfocus.com/bid/99546Third Party Advisory, VDB Entry
- https://bugzilla.suse.com/show_bug.cgi?id=1035283Issue Tracking, Third Party Advisory
- https://cgit.freedesktop.org/xorg/xserver/commit/?id=215f894965df5fb0bb45b107d84524e700d2073cMailing List, Third Party Advisory
- https://cgit.freedesktop.org/xorg/xserver/commit/?id=8caed4df36b1f802b4992edcfd282cbeeec35d9dMailing List, Third Party Advisory
- https://cgit.freedesktop.org/xorg/xserver/commit/?id=ba336b24052122b136486961c82deac76bbde455Mailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.