CVE-2023-53209 — NULL Pointer Dereference in Linux

CWE-476 — NULL Pointer Dereference6 documents6 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 96.92%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
6
LinuxLinux KernelDebian Linux+3 more
Timeline
PublishedSep 15

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.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages7 packages

▶NVDlinux/linux_kernel6.2 — 6.4.7+1
▶Debianlinux/linux_kernel< 6.1.52-1+2
▶CVEListV5linux/linux86e74a08fecb59985bb2d5fe3e96dc108822a420 — d0124848c7940aba73492e282506b32a13f2e30e+3
▶debiandebian/linux< linux 6.1.52-1 (bookworm)

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

2
GHSA
GHSA-4929-6x76-2xpw: In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211_hwsim: Fix possible NULL dereference In a call to mac80211_hwsim_↗2025-09-15
▶
OSV
CVE-2023-53209: In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211_hwsim: Fix possible NULL dereference In a call to mac80211_hwsim_se↗2025-09-15
▶

📋Vendor Advisories

3
Red Hat
kernel: wifi: mac80211_hwsim: Fix possible NULL dereference↗2025-09-15
▶
Microsoft
wifi: mac80211_hwsim: Fix possible NULL dereference↗2025-09-09
▶
Debian
CVE-2023-53209: linux - In the Linux kernel, the following vulnerability has been resolved: wifi: mac80...↗2023
▶
CVE-2023-53209 — NULL Pointer Dereference in Linux | cvebase