CVE-2023-6622

Advisory lineage Upstream: 0 Downstream: 18
Analyzed
Published: 08 Dec 2023, 17:33
Last modified:06 Nov 2025, 19:47

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (cve.org)
EPSS Score
0.01% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

08 Dec 2023, 17:33
Published
Vulnerability first disclosed
06 Nov 2025, 19:47
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.01%• Percentile: 2%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

    The product dereferences a pointer that it expects to be valid but is NULL.

Affected Systems

  • fedoraproject•fedora

    38 | 39

  • linux•linux_kernel

    ≥ 5.11, ≤ 6.6 | 6.7:rc1 | 6.7:rc2 | 6.7:rc3 | 6.7:rc4

  • redhat•enterprise_linux

    8.0 | 9.0

References (8)