Vulnerability Details : 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.
Published 2023-11-03 21:15:17
Updated 2025-03-06 16:15:44
Source MITRE
View at NVD,   CVE.org
Vulnerability category: Memory Corruption

Products affected by CVE-2023-47233

Exploit prediction scoring system (EPSS) score for CVE-2023-47233

EPSS FAQ
0.02%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 4 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-47233

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.3
 MEDIUM CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
0.7
3.6
 134c704f-9b21-4f2e-91b3-4a467353bcc0 2025-03-06
4.3
 MEDIUM CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
0.7
3.6
 NIST

CWE ids for CVE-2023-47233

  • The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
    Assigned by:
    • 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
    • nvd@nist.gov (Primary)

References for CVE-2023-47233

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