Integer underflow in the WMM Action frame parser in hostapd 0.5.5 through 2.4 and wpa_supplicant 0.7.0 through 2.4, when used for AP mode MLME/SME functionality, allows remote attackers to cause a denial of service (crash) via a crafted frame, which triggers an out-of-bounds read.
総合評価: CVE-2015-4142 は中リスク（45.7/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 4.21%、90 パーセンタイル） 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
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 | 2026-06-15 | 7.07% | 4.21% | -2.86% |
| 2 | 2025-06-21 | 3.85% | 7.07% | +3.22% |
| 3 | 2025-05-28 | — | 3.85% | — |
EPSS の全履歴 （全 15 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 |
|---|---|---|---|---|---|---|
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2015-4142 not yet assigned 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-2015-4142 |
gentoo
|
normal | CVE-2015-4142: 1 GLSA(s) (201606-17), 2 atom(s) (net-wireless/hostapd, net-wireless/wpa_supplicant); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2015-4142 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2015-4142 |
suse
|
medium | CVE-2015-4142 severity moderate: SUSE including 29 source package names (hostapd-2.6-1.1, latest:wpa_supplicant-2.9-4.20.1, …), 91 product×package rows across 82 product lines (Container rancher/elemental-teal-rt/5.3, Container rancher/elemental-teal-rt/5.4, … (82 product lines)): Fixed 78, Known Not Affected 13. | https://www.suse.com/security/cve/CVE-2015-4142/ |
ubuntu
|
medium | CVE-2015-4142 medium priority: Ubuntu including 3 source packages (hostapd, wpa, wpasupplicant), 27 status rows across 9 suites (precise, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): DNE 15, released 8, pending 3, ignored 1. | https://ubuntu.com/security/CVE-2015-4142 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| w1.fi | wpa_supplicant | 0.7.0 | cpe:2.3:a:w1.fi:wpa_supplicant:0.7.0:*:*:*:*:*:*:* |
| w1.fi | wpa_supplicant | 0.7.1 | cpe:2.3:a:w1.fi:wpa_supplicant:0.7.1:*:*:*:*:*:*:* |
| w1.fi | wpa_supplicant | 0.7.2 | cpe:2.3:a:w1.fi:wpa_supplicant:0.7.2:*:*:*:*:*:*:* |
| w1.fi | wpa_supplicant | 0.7.3 | cpe:2.3:a:w1.fi:wpa_supplicant:0.7.3:*:*:*:*:*:*:* |
| w1.fi | wpa_supplicant | 1.0 | cpe:2.3:a:w1.fi:wpa_supplicant:1.0:*:*:*:*:*:*:* |
| w1.fi | wpa_supplicant | 1.1 | cpe:2.3:a:w1.fi:wpa_supplicant:1.1:*:*:*:*:*:*:* |
| w1.fi | wpa_supplicant | 2.0 | cpe:2.3:a:w1.fi:wpa_supplicant:2.0:*:*:*:*:*:*:* |
| w1.fi | wpa_supplicant | 2.1 | cpe:2.3:a:w1.fi:wpa_supplicant:2.1:*:*:*:*:*:*:* |
| w1.fi | wpa_supplicant | 2.2 | cpe:2.3:a:w1.fi:wpa_supplicant:2.2:*:*:*:*:*:*:* |
| w1.fi | wpa_supplicant | 2.3 | cpe:2.3:a:w1.fi:wpa_supplicant:2.3:*:*:*:*:*:*:* |
| w1.fi | wpa_supplicant | 2.4 | cpe:2.3:a:w1.fi:wpa_supplicant:2.4:*:*:*:*:*:*:* |
| redhat | enterprise_linux_desktop | 6.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_hpc_node | 6.0 | cpe:2.3:o:redhat:enterprise_linux_hpc_node:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server | 6.0 | cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_workstation | 6.0 | cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* |
| w1.fi | hostapd | 0.7.0 | cpe:2.3:a:w1.fi:hostapd:0.7.0:*:*:*:*:*:*:* |
| w1.fi | hostapd | 0.7.1 | cpe:2.3:a:w1.fi:hostapd:0.7.1:*:*:*:*:*:*:* |
| w1.fi | hostapd | 0.7.2 | cpe:2.3:a:w1.fi:hostapd:0.7.2:*:*:*:*:*:*:* |
| w1.fi | hostapd | 0.7.3 | cpe:2.3:a:w1.fi:hostapd:0.7.3:*:*:*:*:*:*:* |
| w1.fi | hostapd | 1.0 | cpe:2.3:a:w1.fi:hostapd:1.0:*:*:*:*:*:*:* |
| w1.fi | hostapd | 1.1 | cpe:2.3:a:w1.fi:hostapd:1.1:*:*:*:*:*:*:* |
| w1.fi | hostapd | 2.0 | cpe:2.3:a:w1.fi:hostapd:2.0:*:*:*:*:*:*:* |
| w1.fi | hostapd | 2.1 | cpe:2.3:a:w1.fi:hostapd:2.1:*:*:*:*:*:*:* |
| w1.fi | hostapd | 2.2 | cpe:2.3:a:w1.fi:hostapd:2.2:*:*:*:*:*:*:* |
| w1.fi | hostapd | 2.3 | cpe:2.3:a:w1.fi:hostapd:2.3:*:*:*:*:*:*:* |
| w1.fi | hostapd | 2.4 | cpe:2.3:a:w1.fi:hostapd:2.4:*:*:*:*:*:*:* |
| opensuse | opensuse | 13.1 | cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* |
| opensuse | opensuse | 13.2 | cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* |