CVE-2023-6622

Name: CVE-2023-6622
Creator: NVD / NIST
Published: 2023-12-08T18:15:07.163+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.32%

Last modified Jun 17, 2026

CVE-2023-6622 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A null pointer dereference vulnerability was found in nft_dynset_init() in net/netfilter/nft_dynset.c in nf_tables in the Linux kernel. This issue may allow a local attacker with CAP_NET_ADMIN user privilege to trigger a denial of service.. EPSS estimates a 0.32% chance of exploitation in the next 30 days.

Description

A null pointer dereference vulnerability was found in nft_dynset_init() in net/netfilter/nft_dynset.c in nf_tables in the Linux kernel. This issue may allow a local attacker with CAP_NET_ADMIN user privilege to trigger a denial of service.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.32%

24.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Fedoraproject	Fedora	38	—
Fedoraproject	Fedora	39	—
Linux	Linux Kernel	>= 5.11, <= 6.6	—
Linux	Linux Kernel	6.7	Rc1
Redhat	Enterprise Linux	8.0	—
Redhat	Enterprise Linux	9.0	—

References

https://access.redhat.com/errata/RHSA-2024:2394Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:2950Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:3138Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-6622Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2253632Issue Tracking, Patch
https://github.com/torvalds/linux/commit/3701cd390fd731ee7ae8b8006246c8db82c72beaPatch
https://access.redhat.com/errata/RHSA-2024:2394Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:2950Third Party Advisory
https://access.redhat.com/errata/RHSA-2024:3138Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-6622Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2253632Issue Tracking, Patch
https://github.com/torvalds/linux/commit/3701cd390fd731ee7ae8b8006246c8db82c72beaPatch
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AAOVK2F3ALGKYIQ5IOMAYEC2DGI7BWAW/Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/G3AGDVE3KBLOOYBPISFDS74R4YAZEDAY/Third Party Advisory

Timeline

Published: Dec 8, 2023
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-6622?

How severe is CVE-2023-6622?

CVE-2023-6622 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.32% probability of exploitation in the next 30 days.

How do I fix CVE-2023-6622?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-6622?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST