VulnerabilityAnalyzed
CVE-2026-49424
The Linux waitid() implementation translates a FreeBSD siginfo_t struct into a stack-declared Linux siginfo_t.
MEDIUM 5.5EPSS 0.11%
Does this matter?
Lower severity and a low EPSS score (0.11%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.11% probability · 2th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-908
- Affected
- freebsd/freebsd
- Source
- secteam@freebsd.org
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.