VULNERABILITY INTELLIGENCE

CVE-2026-31671

CVSS score5.5 MEDIUM
EPSS probability0.12%
CISA KEVNot currently listed
Published2026-04-24
Last modified2026-10-15
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

In the Linux kernel, the following vulnerability has been resolved: xfrm_user: fix info leak in build_report() struct xfrm_user_report is a __u8 proto field followed by a struct xfrm_selector which means there is three "empty" bytes of padding, but the padding is never zeroed before copying to userspace. Fix that up by zeroing the structure before setting individual member variables.

Weakness classification

  • nvd@nist.gov: CWE-401

Primary references