CVE-2026-90341

Last refreshed2026-10-19

Status: UPDATED | Advisory ID: CVE-2026-90341

Key Details

CVE	CVE-2026-90341
CVSS Score / Version	7.7 (High) / CVSS v3.1
Updated	2026-10-19
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is none; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

firmware: coreboot: Validate table bounds

The existing coreboot_table_populate() bounds checks limit individual

entries to the mapped length. However, coreboot_table_probe() replaces

the platform resource length with header and table sizes supplied by

firmware before mapping the full table.

A malformed table can overflow the 32-bit size addition or advertise an

extent beyond the resource, causing the driver to map and parse memory

outside the resource. A resource shorter than the fixed header is also

mapped as though it contained a complete header.

Reject resources shorter than the fixed header. After validating the

signature, require a complete header, calculate the advertised extent

with overflow checking, and reject extents beyond the resource before

remapping the table. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-90341
CVE	https://www.cve.org/CVERecord?id=CVE-2026-90341

Source

Reference

NVD

CVE