CVE intelligence

CVE-2026-93163

Vulnerability intelligence

Published Sep 17, 2026Sources checked Nov 3, 2026

N/ACVSS not listedScore unavailable

What this means

Review the available evidence

CVE-2026-93163. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

CISA KEVNot listedBased on the latest collected catalog

EPSS0.2%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-93163?

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

hwrng: core - fix rng list on registration error

hwrng_register(rng) does the following:

1. Checks if rng has name and read methods set 2.

Checks if the name already exists 3. Adds rng to global rng_list 4.

May try to set rng to current_rng

If step 4 fails, it returns an error. However, it does not remove the rng from rng_list, causing a dangling reference which can result in use-after-free if the caller frees rng, since registration failed.

Add a list_del_init() cleanup step.

Source: NVD