The implementations of EAP-PWD in hostapd and wpa_supplicant are vulnerable to side-channel attacks as a result of cache access patterns. All versions of hostapd and wpa_supplicant with EAP-PWD support are vulnerable. The ability to install and execute applications is necessary for a successful attack. Memory access patterns are visible in a shared cache. Weak passwords may be cracked. Versions of hostapd/wpa_supplicant 2.7 and newer, are not vulnerable to the timing attack described in CVE-2019-9494. Both hostapd with EAP-pwd support and wpa_supplicant with EAP-pwd support prior to and including version 2.7 are affected.
総合評価: CVE-2019-9495 は中リスク（43.7/100）。CVSS 深刻度は低。悪用される可能性が高い（EPSS 3.45%、87 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 | 5.19% | 3.45% | -1.74% |
| 2 | 2026-06-10 | 6.88% | 5.19% | -1.69% |
| 3 | 2026-05-29 | — | 6.88% | — |
EPSS の全履歴 （全 42 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 |
|---|---|---|---|---|---|---|
| 3.7 | 3.1 | LOW |
|
2.2 | 1.4 | [email protected] |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
low | CVE-2019-9495: 2 source package rows (hostapd, wpa_supplicant); 30 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 15, open 15. | https://security.alpinelinux.org/vuln/CVE-2019-9495 |
debian
|
not yet assigned | CVE-2019-9495 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-2019-9495 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2019-9495 |
suse
|
medium | CVE-2019-9495 severity moderate: SUSE including 26 source package names (hostapd-2.9-6.2, hostapd-2.9-bp150.15.1, …), 81 product×package rows across 76 product lines (Container rancher/elemental-teal-rt/5.3, Container rancher/elemental-teal-rt/5.4, … (76 product lines)): Fixed 72, Known Not Affected 9. | https://www.suse.com/security/cve/CVE-2019-9495/ |
ubuntu
|
medium | CVE-2019-9495 medium priority: Ubuntu including 2 source packages (wpa, wpasupplicant), 12 status rows across 6 suites (bionic, cosmic, disco, trusty, upstream, xenial): released 6, DNE 5, needs-triage 1. | https://ubuntu.com/security/CVE-2019-9495 |
| 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:*:*:*:*:*:*:* |
| opensuse | backports_sle | 15.0 | cpe:2.3:a:opensuse:backports_sle:15.0:-:*:*:*:*:*:* |
| opensuse | backports_sle | 15.0 | cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:* |
| opensuse | leap | 15.1 | cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* |
| synology | radius_server | 3.0 | cpe:2.3:a:synology:radius_server:3.0:*:*:*:*:*:*:* |
| synology | router_manager | < 1.2.3-8017 | cpe:2.3:a:synology:router_manager:*:*:*:*:*:*:*:* |
| debian | debian_linux | 8.0 | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
| freebsd | freebsd | 11.2 | cpe:2.3:o:freebsd:freebsd:11.2:-:*:*:*:*:*:* |
| freebsd | freebsd | 11.2 | cpe:2.3:o:freebsd:freebsd:11.2:p2:*:*:*:*:*:* |
| freebsd | freebsd | 11.2 | cpe:2.3:o:freebsd:freebsd:11.2:p3:*:*:*:*:*:* |
| freebsd | freebsd | 11.2 | cpe:2.3:o:freebsd:freebsd:11.2:p4:*:*:*:*:*:* |
| freebsd | freebsd | 11.2 | cpe:2.3:o:freebsd:freebsd:11.2:p5:*:*:*:*:*:* |
| freebsd | freebsd | 11.2 | cpe:2.3:o:freebsd:freebsd:11.2:p6:*:*:*:*:*:* |
| freebsd | freebsd | 11.2 | cpe:2.3:o:freebsd:freebsd:11.2:p7:*:*:*:*:*:* |
| freebsd | freebsd | 11.2 | cpe:2.3:o:freebsd:freebsd:11.2:p8:*:*:*:*:*:* |
| freebsd | freebsd | 11.2 | cpe:2.3:o:freebsd:freebsd:11.2:p9:*:*:*:*:*:* |
| freebsd | freebsd | 11.2 | cpe:2.3:o:freebsd:freebsd:11.2:rc3:*:*:*:*:*:* |
| freebsd | freebsd | 12.0 | cpe:2.3:o:freebsd:freebsd:12.0:-:*:*:*:*:*:* |
| freebsd | freebsd | 12.0 | cpe:2.3:o:freebsd:freebsd:12.0:p1:*:*:*:*:*:* |
| freebsd | freebsd | 12.0 | cpe:2.3:o:freebsd:freebsd:12.0:p2:*:*:*:*:*:* |
| freebsd | freebsd | 12.0 | cpe:2.3:o:freebsd:freebsd:12.0:p3:*:*:*:*:*:* |