Dashboard / CVE-2026-58374

CVE-2026-58374

HIGH
MEDIUM Priority: 0.02 BB Relevance: 59/100
Published: 2026-06-30 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Adjacent Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Adjacent
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: Low
A: High

Description

In hostapd before 2.12, a missing bounds check in AP-mode Wi-Fi 7 (IEEE 802.11be) Multi-Link Operation (MLO) association request processing allows an unauthenticated attacker within wireless range to send a crafted management frame containing a malformed Multi-Link Element or Per-STA Profile subelement. In hostapd_process_ml_assoc_req() in src/ap/ieee802_11_eht.c, the received link_id field can be parsed as value 15, but the corresponding links[] storage only has valid entries for lower link IDs (0 through 14). This causes an out-of-bounds write / small memory corruption during association processing before the 4-way handshake. The attack does not require network credentials, prior authentication, or user interaction. The confirmed practical impact is denial of service through hostapd process termination. This affects hostapd v2.11 and newer development snapshots before v2.12 when built with CONFIG_IEEE80211BE enabled. The issue is fixed in hostapd v2.12 and the upstream 2026-1 fixes.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
w1.fi hostapd < 2.11

References & Advisories (5)

Bug Bounty Relevance

59 / 100
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.1 / 10.0 v3.1
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

EPSS — Exploitation Probability

0.29%
Raw Score 0.002940
Percentile 22.0%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00294
2026-10-28
0.00294

Intelligence Sources

nvd ref →

External Links