CVE-2025-71234

HIGHNVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-02-18. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

In the Linux kernel, the following vulnerability has been resolved:

wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add

The driver does not set hw->sta_data_size, which causes mac80211 to allocate insufficient space for driver private station data in __sta_info_alloc(). When rtl8xxxu_sta_add() accesses members of struct rtl8xxxu_sta_info through sta->drv_priv, this results in a slab-out-of-bounds write.

KASAN report on RISC-V (VisionFive 2) with RTL8192EU adapter:

BUG: KASAN: slab-out-of-bounds in rtl8xxxu_sta_add+0x31c/0x346 Write of size 8 at addr ffffffd6d3e9ae88 by task kworker/u16:0/12

Set hw->sta_data_size to sizeof(struct rtl8xxxu_sta_info) during probe, similar to how hw->vif_data_size is configured. This ensures mac80211 allocates sufficient space for the driver's per-station private data.

Tested on StarFive VisionFive 2 v1.2A board.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity78% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
8%
KEV
Not listed

Published

February 18, 2026

Last Modified

August 5, 2026

Advisory Details (4)

Auto-updated Jul 31, 2026
No patch confirmed yet.
generic

wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/9a0f3fa6ecd0c9c32dbc367a57482bbf7c7d25bf
generic

wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/86c946bcc00f6390ef65e9614ae60a9377e454f8
generic

wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/5d810ba377eddee95d30766d360a14efbb3d1872
generic

wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxu_sta_add - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/116f7bd8160c6b37d1c6939385abf90f6f6ed2f5

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
linuxKernel @ 6.12.72—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(2 across 2 ecosystems)
Debian:13(1)
PackageVulnerable rangeFixed inDependents
linux6.12.38-1 ... 6.12.73-1~bpo12+1 (12 versions)6.12.73-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
linux6.12.100-1 ... 6.18~rc7-1~exp1 (101 versions)6.18.12-1—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 6× in last 7d / 25× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-20 20:15 UTCEPSS rescore
  2. 2026-09-19 14:33 UTCOSV refresh
  3. 2026-09-18 19:27 UTCEPSS rescore
  4. 2026-09-17 19:30 UTCEPSS rescore
  5. 2026-09-16 14:07 UTCEPSS rescore
  6. 2026-09-16 05:14 UTCEPSS rescore
  7. 2026-09-15 03:10 UTCEPSS rescore
  8. 2026-09-13 16:46 UTCEPSS rescore
  9. 2026-09-12 15:00 UTCEPSS rescore
  10. 2026-09-11 14:52 UTCEPSS rescore
  11. 2026-09-11 09:36 UTCEPSS rescore
  12. 2026-09-10 09:34 UTCEPSS rescore
  13. 2026-09-08 22:00 UTCEPSS rescore
  14. 2026-09-07 16:00 UTCEPSS rescore
  15. 2026-09-06 13:47 UTCEPSS rescore
  16. 2026-09-04 05:06 UTCEPSS rescore
  17. 2026-09-02 14:11 UTCEPSS rescore
  18. 2026-09-01 13:53 UTCEPSS rescore
  19. 2026-08-31 18:04 UTCOSV refresh
  20. 2026-08-30 01:21 UTCEPSS rescore
  21. 2026-08-28 21:40 UTCEPSS rescore
  22. 2026-08-27 14:24 UTCEPSS rescore
  23. 2026-08-26 14:45 UTCEPSS rescore
  24. 2026-08-25 13:48 UTCEPSS rescore
  25. 2026-08-24 14:16 UTCEPSS rescore
Show 42 more
  1. 2026-08-21 23:48 UTCEPSS rescore
  2. 2026-08-20 22:55 UTCEPSS rescore
  3. 2026-08-19 17:03 UTCEPSS rescore
  4. 2026-08-17 13:46 UTCEPSS rescore
  5. 2026-08-16 14:55 UTCEPSS rescore
  6. 2026-08-16 02:14 UTCEPSS rescore
  7. 2026-08-15 01:30 UTCEPSS rescore
  8. 2026-08-14 21:56 UTCGHSA enrichment
  9. 2026-08-14 09:48 UTCGHSA enrichment
  10. 2026-08-13 02:06 UTCEG score recompute
  11. 2026-08-13 02:06 UTCGHSA enrichment
  12. 2026-08-12 13:50 UTCEPSS rescore
  13. 2026-08-11 13:42 UTCEPSS rescore
  14. 2026-08-11 07:29 UTCEG score recompute
  15. 2026-08-11 07:29 UTCGHSA enrichment
  16. 2026-08-10 23:59 UTCEPSS rescore
  17. 2026-08-10 01:31 UTCGHSA enrichment
  18. 2026-08-09 14:07 UTCEG score recompute
  19. 2026-08-09 14:07 UTCGHSA enrichment
  20. 2026-08-09 13:46 UTCEPSS rescore
  21. 2026-08-08 09:05 UTCGHSA enrichment
  22. 2026-08-07 21:41 UTCEG score recompute
  23. 2026-08-07 21:41 UTCGHSA enrichment
  24. 2026-08-07 16:27 UTCEPSS rescore
  25. 2026-08-06 13:46 UTCEPSS rescore
  26. 2026-08-06 03:35 UTCEG score recompute
  27. 2026-08-06 03:35 UTCGHSA enrichment
  28. 2026-08-05 19:17 UTCEPSS rescore
  29. 2026-08-05 12:45 UTCEG score recompute
  30. 2026-08-05 12:44 UTCGHSA enrichment
  31. 2026-08-04 10:37 UTCEPSS rescore
  32. 2026-08-03 10:35 UTCEPSS rescore
  33. 2026-08-02 20:21 UTCEG score recompute
  34. 2026-08-02 20:21 UTCGHSA enrichment
  35. 2026-08-02 02:26 UTCEPSS rescore
  36. 2026-08-01 04:15 UTCEPSS rescore
  37. 2026-07-30 16:27 UTCEPSS rescore
  38. 2026-07-30 06:41 UTCEG score recompute
  39. 2026-07-30 06:41 UTCGHSA enrichment
  40. 2026-07-27 14:13 UTCEPSS rescore
  41. 2026-07-27 13:28 UTCEG score recompute
  42. 2026-07-27 13:28 UTCGHSA enrichment

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2025-71234?
CVE-2025-71234 is a high vulnerability published on February 18, 2026. In the Linux kernel, the following vulnerability has been resolved: wifi: rtl8xxxu: fix slab-out-of-bounds in rtl8xxxustaadd The driver does not set hw->stadatasize, which causes mac80211 to allocate insufficient space for driver private station data in stainfoalloc(). When rtl8xxxustaadd()…
When was CVE-2025-71234 disclosed?
CVE-2025-71234 was first published in the National Vulnerability Database on February 18, 2026, with the most recent update on August 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-71234 actively exploited?
CVE-2025-71234 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 92.5% of all scored CVEs.
What is the CVSS score of CVE-2025-71234?
CVE-2025-71234 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2025-71234?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-71234, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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