CVE-2026-43191: drm/amd/display: Adjust PHY FSM transition to TX_EN-to-PLL_ON for TMDS on DCN35
Published May 6, 2026
·Updated
drm/amd/display: Adjust PHY FSM transition to TXEN-to-PLLON for TMDS on DCN35
Affected Software
3 affected componentsFixes available
Linux Linux kernel (drm/amd/display DCN35)
Microsoft azl3 kernel 6.6.137.1-2
Linux Linux kernel>=6.7<6.19.6
Event History
May 6, 2026
CVE Published
via MITRE·11:28 AM
Data Sourced
via MITRE·11:28 AM
Description
Data Sourced
via NVD·12:16 PM
RemedyDescriptionSeverityAffected Software
May 7, 2026
Data Sourced
via Microsoft·08:07 AM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-43191?
CVE-2026-43191 is categorized as a medium-severity vulnerability affecting the AMD display drivers in the Linux kernel.
2
How do I fix CVE-2026-43191?
To mitigate CVE-2026-43191, it's recommended to upgrade to the latest stable release of the Linux kernel that addresses this vulnerability.
3
Which versions of the Linux kernel are affected by CVE-2026-43191?
CVE-2026-43191 impacts all versions of the Linux kernel between 6.7 and 6.19.6 that include the AMD display subsystem.
4
What is the impact of CVE-2026-43191 on system security?
The vulnerability may lead to security issues related to display driver functionality, possibly affecting system stability and data exposure.
5
Is CVE-2026-43191 specific to certain hardware?
Yes, CVE-2026-43191 specifically affects AMD display hardware utilizing the DCN35 architecture in the Linux kernel.