In Apache HTTP server versions 2.4.37 and prior, by sending request bodies in a slow loris way to plain resources, the h2 stream for that request unnecessarily occupied a server thread cleaning up that incoming data. This affects only HTTP/2 (mod_http2) connections.
総合評価: CVE-2018-17189 は中リスク（54.5/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 19.40%、97 パーセンタイル） 根拠: EPSS 上、短期間での悪用可能性は高い水準です。 推奨対応: 悪用可能性が高いため、影響範囲の確認と修補の優先付けを推奨します。
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 | 2026-06-19 | 20.07% | 19.40% | -0.67% |
| 2 | 2026-06-15 | 7.67% | 20.07% | +12.40% |
| 3 | 2026-04-29 | — | 7.67% | — |
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 |
|---|---|---|---|---|---|---|
| 5.3 | 3.1 | MEDIUM |
|
3.9 | 1.4 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
medium | CVE-2018-17189: 1 source package rows (apache2); 10 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 0. | https://security.alpinelinux.org/vuln/CVE-2018-17189 |
debian
|
low | CVE-2018-17189 low priority: Debian including 1 source packages (apache2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2018-17189 |
gentoo
|
normal | CVE-2018-17189: 1 GLSA(s) (201903-21), 1 atom(s) (www-servers/apache); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2018-17189 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2018-17189 |
suse
|
medium | CVE-2018-17189 severity moderate: SUSE including 47 source package names (apache2, apache2-2.4.23-29.34.4, …), 110 product×package rows across 25 product lines (SLES for SAP Applications 11 SP3, SUSE Liberty Linux 8, … (25 product lines)): Fixed 84, Known Not Affected 26. | https://www.suse.com/security/cve/CVE-2018-17189/ |
ubuntu
|
low | CVE-2018-17189 low priority: Ubuntu including 1 source packages (apache2), 5 status rows across 5 suites (bionic, cosmic, trusty, upstream, xenial): released 3, not-affected 2. | https://ubuntu.com/security/CVE-2018-17189 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| apache | http_server | 2.4.17 | cpe:2.3:a:apache:http_server:2.4.17:*:*:*:*:*:*:* |
| apache | http_server | 2.4.18 | cpe:2.3:a:apache:http_server:2.4.18:*:*:*:*:*:*:* |
| apache | http_server | 2.4.20 | cpe:2.3:a:apache:http_server:2.4.20:*:*:*:*:*:*:* |
| apache | http_server | 2.4.23 | cpe:2.3:a:apache:http_server:2.4.23:*:*:*:*:*:*:* |
| apache | http_server | 2.4.25 | cpe:2.3:a:apache:http_server:2.4.25:*:*:*:*:*:*:* |
| apache | http_server | 2.4.26 | cpe:2.3:a:apache:http_server:2.4.26:*:*:*:*:*:*:* |
| apache | http_server | 2.4.27 | cpe:2.3:a:apache:http_server:2.4.27:*:*:*:*:*:*:* |
| apache | http_server | 2.4.28 | cpe:2.3:a:apache:http_server:2.4.28:*:*:*:*:*:*:* |
| apache | http_server | 2.4.29 | cpe:2.3:a:apache:http_server:2.4.29:*:*:*:*:*:*:* |
| apache | http_server | 2.4.30 | cpe:2.3:a:apache:http_server:2.4.30:*:*:*:*:*:*:* |
| apache | http_server | 2.4.33 | cpe:2.3:a:apache:http_server:2.4.33:*:*:*:*:*:*:* |
| apache | http_server | 2.4.34 | cpe:2.3:a:apache:http_server:2.4.34:*:*:*:*:*:*:* |
| apache | http_server | 2.4.35 | cpe:2.3:a:apache:http_server:2.4.35:*:*:*:*:*:*:* |
| apache | http_server | 2.4.37 | cpe:2.3:a:apache:http_server:2.4.37:*:*:*:*:*:*:* |
| netapp | santricity_cloud_connector | — | cpe:2.3:a:netapp:santricity_cloud_connector:-:*:*:*:*:*:*:* |
| netapp | storage_automation_store | — | cpe:2.3:a:netapp:storage_automation_store:-:*:*:*:*:*:*:* |
| fedoraproject | fedora | 28 | cpe:2.3:o:fedoraproject:fedora:28:*:*:*:*:*:*:* |
| fedoraproject | fedora | 29 | cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| oracle | enterprise_manager_ops_center | 12.3.3 | cpe:2.3:a:oracle:enterprise_manager_ops_center:12.3.3:*:*:*:*:*:*:* |
| oracle | hospitality_guest_access | 4.2.0 | cpe:2.3:a:oracle:hospitality_guest_access:4.2.0:*:*:*:*:*:*:* |
| oracle | hospitality_guest_access | 4.2.1 | cpe:2.3:a:oracle:hospitality_guest_access:4.2.1:*:*:*:*:*:*:* |
| oracle | instantis_enterprisetrack | 17.1 | cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:* |
| oracle | instantis_enterprisetrack | 17.2 | cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:* |
| oracle | instantis_enterprisetrack | 17.3 | cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:* |
| oracle | retail_xstore_point_of_service | 7.0 | cpe:2.3:a:oracle:retail_xstore_point_of_service:7.0:*:*:*:*:*:*:* |
| oracle | retail_xstore_point_of_service | 7.1 | cpe:2.3:a:oracle:retail_xstore_point_of_service:7.1:*:*:*:*:*:*:* |
| oracle | sun_zfs_storage_appliance_kit | 8.8.6 | cpe:2.3:a:oracle:sun_zfs_storage_appliance_kit:8.8.6:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 14.04 | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* |
| canonical | ubuntu_linux | 16.04 | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* |
| canonical | ubuntu_linux | 18.04 | cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 18.10 | cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* |
| redhat | jboss_core_services | 1.0 | cpe:2.3:a:redhat:jboss_core_services:1.0:*:*:*:*:*:*:* |