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Vulnerability record · CVE-2023-33952 · published 24 July 2023

CVE-2023-33952: Linux kernel double free vulnerability

Linux · Linux Kernel

A double-free vulnerability was found in handling vmw_buffer_object objects in the vmwgfx driver in the Linux kernel. This issue occurs due to the lack of validating the existence of an object prior to performing further free operations on the object, which may allow a local privileged user to escalate privileges and execute code in the context of the kernel.

6.7 CVSS 3.1 Medium EPSS 0.46% · top 61.6% CWE-415 · Double free
6.7CVSS 3.1 base score
0.46%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
18References
17 Jun 2026Last modified by NVD

Description

A double-free vulnerability was found in handling vmw_buffer_object objects in the vmwgfx driver in the Linux kernel. This issue occurs due to the lack of validating the existence of an object prior to performing further free operations on the object, which may allow a local privileged user to escalate privileges and execute code in the context of the kernel.

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/errata/RHSA-2023:6583 Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:6901 Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:7077 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:1404
https://access.redhat.com/errata/RHSA-2024:4823
https://access.redhat.com/errata/RHSA-2024:4831
https://access.redhat.com/security/cve/CVE-2023-33952 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2218212 Issue TrackingPatchThird Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-CAN-20292 PatchThird Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2023:6583 Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:6901 Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:7077 Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:1404
https://access.redhat.com/errata/RHSA-2024:4823
https://access.redhat.com/errata/RHSA-2024:4831
https://access.redhat.com/security/cve/CVE-2023-33952 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2218212 Issue TrackingPatchThird Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-CAN-20292 PatchThird Party AdvisoryVDB Entry

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Source: NIST National Vulnerability Database (record CVE-2023-33952), CISA KEV, FIRST EPSS (scores of 2026-10-10). This page is refreshed as NVD updates the record.