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CVE-2026-63824

Last refreshed2026-10-17

Status: UPDATED  |  Advisory ID: CVE-2026-63824

Key Details

CVECVE-2026-63824
CVSS Score / Version
7.8 (High) / CVSS v3.1
Updated2026-10-16
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS Prose
attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products
Linux Kernel

Affected Products, Subsystems & Sectors

VendorProductAffected VersionsPatch Status
LinuxLinux Kernel
SubsystemsOT Supporting Infrastructure
SectorsAll Sectors

What to Know

In the Linux kernel, the following vulnerability has been resolved:

KEYS: fix overflow in keyctl_pkey_params_get_2()

The length for the internal output buffer is calculated incorrectly, which

can result overflow when a too small buffer is provided.

Fix the bug by allocating internal output with the size of the maximum

length of the cryptographic primitive instead of caller provided size. (NVD)

What to Do

Monitor Linux's web page for any future patch releases.

References

SourceReference
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2026-63824
CVEhttps://www.cve.org/CVERecord?id=CVE-2026-63824

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