What is CVE-2026-31704?

CVE-2026-31704 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2026-05-01.

How severe is CVE-2026-31704?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Linux

CVE-2026-31704

In the Linux kernel, the following vulnerability has been resolved: ksmbd: use check_add_overflow() to prevent u16 DACL size overflow set_posix_acl_entries_dacl() and set_ntacl_dacl() accumulate ACE sizes in u16 variables. When a file ha…

EPSS: 0.000 (3.4th percentile) — read the EPSS interpretation.

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.

Affected products

Linux — versions 6.18.25, e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9, 6.6.136
Linux Linux_kernel

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67

Frequently asked questions

What is CVE-2026-31704?: CVE-2026-31704 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2026-05-01.
How severe is CVE-2026-31704?: Medium severity. CVSS v3 base score is 5.5 out of 10.