Vulnerability in Linux

CVE-2026-89792

In the Linux kernel, the following vulnerability has been resolved: ksmbd: prevent out-of-bounds reads in share config responses Validate IPC share configuration payload sizes before consuming variable-length fields. Bound veto list parsing and account for the separator byte when deriving the path length.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.

EPSS exploit prediction

EPSS: 0.002 (5.6th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 5.6% 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-2026-89792: 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 51a6c2af9d20203ddeeaf73314ba8854b38d01bd, 6.9, 76af689a45aa44714b46d1a7de4ffdf851ded896

References

Frequently asked questions

What is CVE-2026-89792?
CVE-2026-89792 is a high-severity vulnerability in Linux. CVSS score: 7.1/10. Published 2026-09-16.
How severe is CVE-2026-89792?
High severity. CVSS v3 base score is 7.1 out of 10.