NULL pointer dereference in Linux

CVE-2023-53113

In the Linux kernel, the following vulnerability has been resolved: wifi: nl80211: fix NULL-ptr deref in offchan check If, e.g. in AP mode, the link was already created by userspace but not activated yet, it has a chandef but the chandef isn't valid and has no channel. Check for this and ignore this link.

EPSS: 0.002 (7.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

  • Linux — versions 7a53ad13c09150076b7ddde96c2dfc5622c90b45, 7b0a0e3c3a88260b6fcb017e49f198463aa62ed1, 5.19.2
  • Linux Linux_kernel — versions 6.3

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-53113?
CVE-2023-53113 is a medium-severity vulnerability in Linux, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2025-05-02.
How severe is CVE-2023-53113?
Medium severity. CVSS v3 base score is 5.5 out of 10.