An invalid authentication sequence could result in the hostapd process terminating due to missing state validation steps when processing the SAE confirm message when in hostapd/AP mode. All version of hostapd with SAE support are vulnerable. An attacker may force the hostapd process to terminate, performing a denial of service attack. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.7 are affected.
総合評価: CVE-2019-9496 は中リスク（61.1/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 4.87%、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 | 2026-05-26 | 5.16% | 4.87% | -0.29% |
| 2 | 2026-05-22 | 2.36% | 5.16% | +2.80% |
| 3 | 2026-02-18 | — | 2.36% | — |
EPSS の全履歴 （全 19 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 |
|---|---|---|---|---|---|---|
| 7.5 | 3.0 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
high | CVE-2019-9496: 2 source package rows (hostapd, wpa_supplicant); 35 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 10, open 25. | https://security.alpinelinux.org/vuln/CVE-2019-9496 |
debian
|
not yet assigned | CVE-2019-9496 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-2019-9496 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2019-9496 |
suse
|
medium | CVE-2019-9496 severity moderate: SUSE including 5 source package names (hostapd-2.9-6.2, hostapd-2.9-bp150.15.1, hostapd-2.9-bp151.5.3.1, hostapd-2.9-lp151.4.3.1, wpa_supplicant), 22 product×package rows across 22 product lines (SLES for SAP Applications 11 SP3, SUSE Linux Enterprise Desktop 12 SP3, … (22 product lines)): Known Not Affected 18, Fixed 4. | https://www.suse.com/security/cve/CVE-2019-9496/ |
ubuntu
|
medium | CVE-2019-9496 medium priority: Ubuntu including 2 source packages (wpa, wpasupplicant), 10 status rows across 5 suites (bionic, cosmic, trusty, upstream, xenial): DNE 4, not-affected 4, needs-triage 1, released 1. | https://ubuntu.com/security/CVE-2019-9496 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| w1.fi | hostapd | <= 2.7 | cpe:2.3:a:w1.fi:hostapd:*:*:*:*:*:*:*:* |
| w1.fi | wpa_supplicant | <= 2.7 | cpe:2.3:a:w1.fi:wpa_supplicant:*:*:*:*:*:*:*:* |
| fedoraproject | fedora | 28 | cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:* |
| fedoraproject | fedora | 29 | cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* |
| fedoraproject | fedora | 30 | cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* |