CVE-2026-49424

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 36/100
Published: 2026-08-19 Modified: 2026-10-27 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: High
I: None
A: None

Description

The Linux waitid() implementation translates a FreeBSD siginfo_t struct into a stack-declared Linux siginfo_t. It did not first zero the stack struct. An unprivileged user may observe 104 bytes of uninitialized kernel stack data, which may contain sensitive information.

Weakness Classification (1)

Affected Software (35)

Showing 30 of 35 entries

References & Advisories (1)

Bug Bounty Relevance

36 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

5.5 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS — Exploitation Probability

0.15%
Raw Score 0.001510
Percentile 4.2%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00151
2026-10-28
0.00151

Intelligence Sources

nvd ref →