CVE-2022-40133: There is an UAF vulnerability in vmwgfx driver
Vulnerability summary
CVE-2022-40133 is a medium (CVSS 6.3) Use After Free vulnerability in linux kernel. EPSS estimates a 0.63% chance of exploitation in the next 30 days, higher than 50.4% of scored vulnerabilities.
Not severe (CVSS 6.3, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 15 · Related 8Timeline
- 09-09-2022PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
A use-after-free(UAF) vulnerability was found in function 'vmw_execbuf_tie_context' in drivers/gpu/vmxgfx/vmxgfx_execbuf.c in Linux kernel's vmwgfx driver with device file '/dev/dri/renderD128 (or Dxxx)'. This flaw allows a local attacker with a user account on the system to gain privilege, causing a denial of service(DoS).
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated6.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
0.63%
Chance of exploitation in the next 30 days
Percentile
50%
Versus all other CVEs
30-day change
Increase +0.01 pp
From 0.63% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, low-privilege account, user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu96 products
- linuxAll versions (No fix recorded)
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded)
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- kernel≥ v4.20-rc1, < 5.13.0-52*
- linux_kernel≥ 4.20, < 6.1.7 | 6.2:rc1 | 6.2:rc2 | 6.2:rc3 | 6.2:rc4
Debian1 product
- linux< 6.1.7-1
3 vendors · 99 products