{"cve":"CVE-2022-50440","nvd":{"published":"2025-10-01T12:15:36.133","modified":"2026-10-15T22:17:30.637","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vmwgfx: Validate the box size for the snooped cursor\n\nInvalid userspace dma surface copies could potentially overflow\nthe memcpy from the surface to the snooped image leading to crashes.\nTo fix it the dimensions of the copybox have to be validated\nagainst the expected size of the snooped cursor.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"references":["https://git.kernel.org/stable/c/439cbbc1519547f9a7b483f0de33b556ebfec901","https://git.kernel.org/stable/c/4cf949c7fafe21e085a4ee386bb2dade9067316e","https://git.kernel.org/stable/c/4d54d11b49860686331c58a00f733b16a93edfc4","https://git.kernel.org/stable/c/50d177f90b63ea4138560e500d92be5e4c928186","https://git.kernel.org/stable/c/622d527decaac0eb65512acada935a0fdc1d0202"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:11:26.888974865+00:00"},"epss":{"cve":"CVE-2022-50440","score":0.00171,"percentile":0.06475,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}