7.8

CVE-2022-50440: drm/vmwgfx: Validate the box size for the snooped cursor

Modified
AliasesUBUNTU-CVE-2022-50440DEBIAN-CVE-2022-50440
Published 01-10-2025Last modified 15-10-2026

Vulnerability summary

CVE-2022-50440 is a high (CVSS 7.8) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 6.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.17%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 9 · Related 7
RHSA-2023:6583RHSA-2023:7077SUSE-SU-2025:03613-1SUSE-SU-2025:03614-1SUSE-SU-2025:03615-1SUSE-SU-2025:03626-1

Timeline

  1. 01-10-2025
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Validate the box size for the snooped cursor Invalid userspace dma surface copies could potentially overflow the memcpy from the surface to the snooped image leading to crashes. To fix it the dimensions of the copybox have to be validated against the expected size of the snooped cursor.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

7%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.17% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu120 products
  • linuxAll versions (No fix recorded) | < 4.4.0-239.273 | < 4.15.0-208.220 | < 5.4.0-144.161 | < 5.15.0-69.76
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 4.4.0-1117.123 | < 4.4.0-1155.170 | < 4.15.0-1153.166 | < 5.4.0-1097.105 | < 5.15.0-1033.37
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 2ac863719e518ae1a8f328849e64ea26a222f079, < ee8d31836cbe7c26e207bfa0a4a726f0a25cfcf6 | ≥ 2ac863719e518ae1a8f328849e64ea26a222f079, < 50d177f90b63ea4138560e500d92be5e4c928186 | ≥ 2ac863719e518ae1a8f328849e64ea26a222f079, < 6b4e70a428b5a11f56db94047b68e144529fe512 | ≥ 2ac863719e518ae1a8f328849e64ea26a222f079, < 94b283341f9f3f0ed56a360533766377a01540e0 | ≥ 2ac863719e518ae1a8f328849e64ea26a222f079, < 439cbbc1519547f9a7b483f0de33b556ebfec901 | ≥ 2ac863719e518ae1a8f328849e64ea26a222f079, < 6948e570f54f2044dd4da444b10471373a047eeb | ≥ 2ac863719e518ae1a8f328849e64ea26a222f079, < 4d54d11b49860686331c58a00f733b16a93edfc4 | ≥ 2ac863719e518ae1a8f328849e64ea26a222f079, < 622d527decaac0eb65512acada935a0fdc1d0202 | ≥ 2ac863719e518ae1a8f328849e64ea26a222f079, < 4cf949c7fafe21e085a4ee386bb2dade9067316e | 3.2
  • linux_kernel≥ 3.2, < 4.9.337 | ≥ 4.10, < 4.14.303 | ≥ 4.15, < 4.19.270 | ≥ 4.20, < 5.4.229 | ≥ 5.5, < 5.10.163 | ≥ 5.11, < 5.15.87 | ≥ 5.16, < 6.0.18 | ≥ 6.1, < 6.1.4
Debian1 product
  • linux< 6.1.4-1

3 vendors · 123 products

References

13 links
Show all 13 references