CVE-2023-33951: Kernel: vmwgfx: race condition leading to information disclosure vulnerability
Vulnerability summary
CVE-2023-33951 is a medium (CVSS 6.7) Improper Resource Locking vulnerability in linux linux_kernel. EPSS estimates a 0.34% chance of exploitation in the next 30 days, higher than 27.9% of scored vulnerabilities.
Not severe (CVSS 6.7, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 12 · Related 6Timeline
- 24-07-2023PublishedVulnerability first disclosed.
- 18-02-2026Last modifiedVulnerability information updated.
Description
A race condition vulnerability was found in the vmwgfx driver in the Linux kernel. The flaw exists within the handling of GEM objects. The issue results from improper locking when performing operations on an object. This flaw allows a local privileged user to disclose information in the context of the kernel.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated6.7MediumCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:L
- OSV · DebianEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:NDiffers
- NVDNIST5.3MediumCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:NDiffers
EPSS trend
Probability
0.34%
Chance of exploitation in the next 30 days
Percentile
28%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.34% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-413Improper Resource LockingThe product must have exclusive access to a resource, but it does not lock or does not correctly lock that resource.
- CWE-362Concurrent Execution using Shared Resource with Improper SynchronizationThe product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
- CWE-667Improper LockingThe product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.
Affected systems
Known conditions: local access, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu51 products
- linux-allwinner-5.19< 5.19.0-1012.12~22.04.1
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
- linux-aws-5.13All versions (No fix recorded)
- linux-aws-5.19< 5.19.0-1025.26~22.04.1
Redhat3 products
Debian1 product
- linux< 6.1.15-1
Linux1 product
- linux_kernel≤ 6.3.9
4 vendors · 56 products
