Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2026-43248

Severity CVSS v4.0:
Pending analysis
Type:
CWE-787 Out-of-bounds Write
Publication date:
06/05/2026
Last modified:
11/05/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> vhost: move vdpa group bound check to vhost_vdpa<br /> <br /> Remove duplication by consolidating these here. This reduces the<br /> posibility of a parent driver missing them.<br /> <br /> While we&amp;#39;re at it, fix a bug in vdpa_sim where a valid ASID can be<br /> assigned to a group equal to ngroups, causing an out of bound write.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
7.80
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.19 (including) 6.12.75 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.13 (including) 6.18.16 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.19 (including) 6.19.6 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools