High 7.6Published Jan 13, 2026

CVE-2025-71100wifi: rtlwifi: 8192cu: fix tid out of range in rtl92cu_tx_fill_desc()

Updated under an hour ago (Oct 28, 2026, 3:40 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: wifi: rtlwifi: 8192cu: fix tid out of range in rtl92cu_tx_fill_desc() TID getting from ieee80211_get_tid() might be out of range of array size of sta_entry->tids[], so check TID is less than MAX_TID_COUNT. Othwerwise, UBSAN warn: UBSAN: array-index-out-of-bounds in drivers/net/wireless/realtek/rtlwifi/rtl8192cu/trx.c:514:30 index 10 is out of range for type 'rtl_tid_data [9]'

CVSS: 7.6 HIGH (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Weakness (CWE): CWE-125
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 8ca4cdef93297c9b9bf08da39bc940bd20acbb94 before 9765d6eb8298b07d499cdf9ef7c237d3540102d6; from 8ca4cdef93297c9b9bf08da39bc940bd20acbb94 before 90a15ff324645aa806d81fa349497cd964861b66; from 8ca4cdef93297c9b9bf08da39bc940bd20acbb94 before dd39edb445f07400e748da967a07d5dca5c5f96e	CNA record
linux linux_kernel linux:linux_kernel	from 6.9.1 before 6.12.64; from 6.13 before 6.18.4; 6.9; 6.19; 6.19; 6.19; 6.19; 6.19; and 3 more ranges	NVD

References

References

https://git.kernel.org/stable/c/9765d6eb8298b07d499cdf9ef7c237d3540102d6	patch
https://git.kernel.org/stable/c/90a15ff324645aa806d81fa349497cd964861b66	patch
https://git.kernel.org/stable/c/dd39edb445f07400e748da967a07d5dca5c5f96e	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.