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CVE-2023-53209

wifi: mac80211_hwsim: Fix possible NULL dereference

Medium5.5EPSS 0.16%
Published
Updated
Reserved
Assigned by
Linux

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.

Timeline

  1. ID reserved

    By Linux

  2. Published

  3. · 8 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2023-53209, by who scored it
Scored byCVSSScoreVector
CISA-ADPADP (enrichment)3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVDNVD · Modified3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.16% · top 95% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.

Weakness

Affected products

  • Linux · Linux

    • affected 86e74a08fecb59985bb2d5fe3e96dc108822a420 – < d0124848c7940aba73492e282506b32a13f2e30e
    • affected 86e74a08fecb59985bb2d5fe3e96dc108822a420 – < a8a20fed3e05b3a6866c5c58855deaf3c217ccd6
    • affected 86e74a08fecb59985bb2d5fe3e96dc108822a420 – < 0cc80943ef518a1c51a1111e9346d1daf11dd545

  • Linux · Linux

    • affected 6.1
    • unaffected < 6.1
    • unaffected 6.1.42 – ≤ 6.1.*
    • unaffected 6.4.7 – ≤ 6.4.*
    • unaffected 6.5 – ≤ *

References (3)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .