CVE-2023-47233

The brcm80211 component in the Linux kernel through 6.5.10 has a brcmf_cfg80211_detach use-after-free in the device unplugging (disconnect the USB by hotplug) code. For physically proximate attackers with local access, this "could be exploited in a real world scenario." This is related to brcmf_cfg80211_escan_timeout_worker in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c.

CVSS 3.1

4.3CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.3% chance of exploitation in the next 30 days; higher than 24% of CVEs (scores of 2026-10-25)

CWE

CWE-416

Published

2023-11-03

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

Affected

• linux:linux_kernel

References

• https://bugzilla.suse.com/show_bug.cgi?id=1216702
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0f7352557a35ab7888bc7831411ec8a3cbe20d78
• https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
• https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
• https://lore.kernel.org/all/20231104054709.716585-1-zyytlz.wz%40163.com/

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