CVE-2022-50440

low-risk
Published 2025-10-01

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.

Do I need to act?

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0.01% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (9)

Patch https://git.kernel.org/stable/c/439cbbc1519547f9a7b483f0de33b556ebfec901
Patch https://git.kernel.org/stable/c/4cf949c7fafe21e085a4ee386bb2dade9067316e
Patch https://git.kernel.org/stable/c/4d54d11b49860686331c58a00f733b16a93edfc4
Patch https://git.kernel.org/stable/c/50d177f90b63ea4138560e500d92be5e4c928186
Patch https://git.kernel.org/stable/c/622d527decaac0eb65512acada935a0fdc1d0202
Patch https://git.kernel.org/stable/c/6948e570f54f2044dd4da444b10471373a047eeb
Patch https://git.kernel.org/stable/c/6b4e70a428b5a11f56db94047b68e144529fe512
Patch https://git.kernel.org/stable/c/94b283341f9f3f0ed56a360533766377a01540e0
Patch https://git.kernel.org/stable/c/ee8d31836cbe7c26e207bfa0a4a726f0a25cfcf6
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal