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Vulnerability record · CVE-2023-3338 · published 30 June 2023

CVE-2023-3338: Linux kernel null pointer dereference vulnerability

Linux · Linux Kernel

A null pointer dereference flaw was found in the Linux kernel's DECnet networking protocol. This issue could allow a remote user to crash the system.

6.5 CVSS 3.1 Medium EPSS 8.0% · top 5.4% CWE-476 · NULL pointer dereference
6.5CVSS 3.1 base score
8.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
14References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

A null pointer dereference flaw was found in the Linux kernel's DECnet networking protocol. This issue could allow a remote user to crash the system.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/security/cve/CVE-2023-3338 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2218618 Issue Tracking
https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html Mailing ListThird Party Advisory
https://seclists.org/oss-sec/2023/q2/276 ExploitMailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20230824-0005/ Third Party Advisory
https://www.debian.org/security/2023/dsa-5480 Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-3338 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2218618 Issue Tracking
https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html Mailing ListThird Party Advisory
https://seclists.org/oss-sec/2023/q2/276 ExploitMailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20230824-0005/ Third Party Advisory
https://www.debian.org/security/2023/dsa-5480 Third Party Advisory

Track CVE-2023-3338 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

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Source: NIST National Vulnerability Database (record CVE-2023-3338), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.