PT-2026-46026 · Amd+1 · Amd Display Driver+1

Dan + 1 · CVE-2026-46263 · Published 2026-06-03 · Updated 2026-07-22

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An out-of-bounds access issue exists in the AMD display driver within the Linux kernel. The eng id variable is used as an index for the stream enc regs[] array, which contains only five entries. If eng id is negative or equal to 5 (ENGINE ID DIGF), the system may access memory beyond the array boundaries. This occurs within the dcn35 stream encoder create() function.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2026-46263

SUSE-SU-2026:3130-1

SUSE-SU-2026:3166-1

Affected Products

Amd Display Driver

Linux Kernel

References · 1075

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46263.json · Exploit
• https://osv.dev/vulnerability/SUSE-SU-2026:3130-1 · Vendor Advisory
• https://git.kernel.org/stable/c/abde491143e4e12eecc41337910aace4e8d59603 · Patch
• https://security-tracker.debian.org/tracker/CVE-2026-46263 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-46263 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-46263 · Security Note
• https://osv.dev/vulnerability/CVE-2026-46263 · Vendor Advisory
• https://git.kernel.org/stable/c/29f3824b08a98d41ecbbfd33580630d7607f962e · Patch
• https://git.kernel.org/stable/c/263e28add4f4472cfa95150d218955d1945aa413 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2026:3166-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-46263 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-46263 · Security Note
• https://osv.dev/vulnerability/BELL-CVE-2026-46263 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-46263 · Vendor Advisory
• https://git.kernel.org/stable/c/ca3808d560ad946ab6d089fd1f5bee04b952ead4 · Patch