GHSA-f38w-mwf7-vv8p · 深刻度: medium — In hostapd before 2.12, a missing bounds check in AP-mode Wi-Fi 7 (IEEE 802.11be) Multi-Link...
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.
総合評価: CVE-2026-58374 は低リスク(33.2/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.29%、20 パーセンタイル) 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置(高いほど相対的に深刻)を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-07-01 | — | 0.29% | — |
EPSS の全履歴 (全 1 件)
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| 7.1 | 3.1 | HIGH |
|
2.8 | 4.2 | [email protected] |
GHSA-f38w-mwf7-vv8p · 深刻度: medium — In hostapd before 2.12, a missing bounds check in AP-mode Wi-Fi 7 (IEEE 802.11be) Multi-Link...
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2026-58374 unimportant priority: Debian including 1 source packages (wpa), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2026-58374 |
suse
|
high | CVE-2026-58374 severity important: SUSE including 2 source package names (wpa_supplicant-2.11-7.1, wpa_supplicant-gui-2.11-7.1), 2 product×package rows across 1 product lines (openSUSE Tumbleweed): Fixed 2. | https://www.suse.com/security/cve/CVE-2026-58374/ |
ubuntu
|
medium | CVE-2026-58374 medium priority: Ubuntu including 1 source packages (wpa), 9 status rows across 9 suites (bionic, focal, jammy, noble, questing, resolute, trusty, upstream, xenial): needs-triage 9. | https://ubuntu.com/security/CVE-2026-58374 |
| URL | タグ |
|---|---|
| https://git.w1.fi/cgit/hostap/commit/?id=46dd5a4ffc9bcf44cf8fc45120b3e1e5ec922187 | Patch |
| https://git.w1.fi/cgit/hostap/commit/?id=aa9d345887389a251c63a3781d2ad2940d079193 | Patch |
| https://w1.fi/security/2026-1/ | Issue Tracking |
| https://w1.fi/security/2026-1/missing-ml-parsing-validation.txt | Mitigation Third Party Advisory |
| https://www.openwall.com/lists/oss-security/2026/06/30/1 | Mailing List Mitigation Patch |