Vulnerability in Linux

CVE-2022-50407

In the Linux kernel, the following vulnerability has been resolved: crypto: hisilicon/qm - increase the memory of local variables Increase the buffer to prevent stack overflow by fuzz test. The maximum length of the qos configuration buffer is 256 bytes. Currently, the value of the 'val buffer' is only 32 bytes. The sscanf does not check the dest memory length. So the 'val buffer' may stack overflow.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.002 (5.7th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 5.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2022-50407: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

  • Linux — versions 263c9959c9376ec0217d6adc61222a53469eed3c, 5.14, 72b010dc33b9598883bc84d40b0a9d07c16f5e39
  • Linux Kernel

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2022-50407?
CVE-2022-50407 is a medium-severity vulnerability in Linux, classified under Uncontrolled Recursion. CVSS score: 5.5/10. Published 2025-09-18.
How severe is CVE-2022-50407?
Medium severity. CVSS v3 base score is 5.5 out of 10.