PT-2026-4670 · Linux+1 · Linux Kernel+1

Published 2026-01-01 · Updated 2026-01-25 · CVE-2026-23008

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

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

Description The Linux kernel contains a flaw within the drm/vmwgfx component related to handling KMS with 3D on hardware version 10. Specifically, hardware version 10 lacks GB Surfaces, which are necessary for backing buffers for surface-backed framebuffers. This absence leads to a null pointer dereference, causing the driver to crash and resulting in a black screen.

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

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2026-04099

CVE-2026-23008

Affected Products

Linux Kernel

Vmwgfx

References · 16

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23008.json · Exploit
• https://git.kernel.org/stable/c/d9186faeae6efb7d0841a5e8eb213ff4c7966614 · Patch
• https://bdu.fstec.ru/vul/2026-04099 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2026-23008 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-23008 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-23008 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-23008 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-23008 · Security Note
• https://git.kernel.org/stable/c/a91bdd21d5efb3072beefbec13762b7722200c49 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-23008 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2026-23008 · Vendor Advisory
• https://t.me/CVEtracker/42969 · Telegram Post
• https://access.redhat.com/security/cve/cve-2026-23008 · Note
• https://twitter.com/CVEnew/status/2015448642564260030 · Twitter Post
• https://git.kernel.org/linus/d9186faeae6efb7d0841a5e8eb213ff4c7966614 · Note