CVE-2023-53209

wifi: mac80211_hwsim: Fix possible NULL dereference

At a glance

Severity: MEDIUM 5.5
EPSS: EPSS 0.16 % · percentile 5 (2026-10-27)
State: PUBLISHED
Published: 2025-09-15
Updated: 2026-05-11
Assigner: Linux
NVD status: Modified

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211_hwsim: Fix possible NULL dereference In a call to mac80211_hwsim_select_tx_link() the sta pointer might be NULL, thus need to check that it is not NULL before accessing it.

Scores

Version	Score	Vector	Scored by
CVSS 3.1	MEDIUM 5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP
CVSS 3.1	MEDIUM 5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	NVD · nvd@nist.gov (Primary)
CVSS 3.1	MEDIUM 5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Weaknesses (CWE)

CWE-476

European references

ENISA EUVD · EUVD-2023-59874
GCVE · GCVE-0-2023-53209

CERT-FR advisories

CERTFR-2026-AVI-0326 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
CERTFR-2026-AVI-0316 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
CERTFR-2025-AVI-1078 — Multiples vulnérabilités dans les produits Microsoft · cert.ssi.gouv.fr
CERTFR-2025-AVI-1032 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
CERTFR-2025-AVI-1009 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
CERTFR-2025-AVI-0921 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
CERTFR-2025-AVI-0895 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* < 6.1.42
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* ≥ 6.2 < 6.4.7

Affected products

Product	Versions
Linux · Linux	affected 86e74a08fecb59985bb2d5fe3e96dc108822a420 < d0124848c7940aba73492e282506b32a13f2e30e ; affected 86e74a08fecb59985bb2d5fe3e96dc108822a420 < a8a20fed3e05b3a6866c5c58855deaf3c217ccd6 ; affected 86e74a08fecb59985bb2d5fe3e96dc108822a420 < 0cc80943ef518a1c51a1111e9346d1daf11dd545
Linux · Linux	affected 6.1 ; unaffected 0 < 6.1 ; unaffected 6.1.42 ≤ 6.1.* ; unaffected 6.4.7 ≤ 6.4.* ; unaffected 6.5 ≤ *

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD