Vulnerability in Linux

CVE-2026-93801

In the Linux kernel, the following vulnerability has been resolved: smb/client: zero-initialize stack-allocated cifs_open_info_data Stack-allocated cifs_open_info_data may contain random data. This can make some fields have wrong value if they are not set later.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.001 (2.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 2.3% 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-2026-93801: held from 0.001 to 0.001.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: +0.000

Affected products

  • Linux — versions 436cfdbc57d98808fce427d9a8d97691374989b3, 6.18, 83d3bc866530a36a465b47cce4d2a9def2411960

References

Frequently asked questions

What is CVE-2026-93801?
CVE-2026-93801 is a high-severity vulnerability in Linux. CVSS score: 7.0/10. Published 2026-09-24.
How severe is CVE-2026-93801?
High severity. CVSS v3 base score is 7.0 out of 10.