What is CVE-2025-71100?

CVE-2025-71100 is a high-severity vulnerability in Linux, classified under Improper Validation of Array Index. CVSS score: 7.6/10. Published 2026-01-13.

How severe is CVE-2025-71100?

High severity. CVSS v3 base score is 7.6 out of 10.

Vulnerability in Linux

CVE-2025-71100

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]'

EPSS: 0.001 (2.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H.

Affected products

Linux — versions 8ca4cdef93297c9b9bf08da39bc940bd20acbb94, 6.9, 0
Linux Linux_kernel — versions 6.9, 6.19

Weakness classification (CWE)

CWE-129 — Improper Validation of Array Index

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2025-71100?: CVE-2025-71100 is a high-severity vulnerability in Linux, classified under Improper Validation of Array Index. CVSS score: 7.6/10. Published 2026-01-13.
How severe is CVE-2025-71100?: High severity. CVSS v3 base score is 7.6 out of 10.