SEPTEMBER 18, 2026
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Case File

CVE-2026-49424

MEDIUM · CVSS 5.5 EPSS 0.11%

Source: NVD + CISA KEV + EPSS · Published 2026-08-19 · Last synced 2026-09-18

CyberRota Analysis

AI-Generated

The Linux waitid() function is vulnerable due to improper handling of the siginfo_t struct, allowing unprivileged users to access 104 bytes of uninitialized kernel stack data that may leak sensitive information. This vulnerability poses a risk to systems where untrusted users have access, particularly in multi-user environments. System administrators and security teams should prioritize addressing this issue to mitigate potential data exposure.

CVE
CVE-2026-49424
Severity
MEDIUM
CVSS
5.5
EPSS
0.11%
Linux

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)