A vulnerability was found in Apache HTTP Server 2.4.34 to 2.4.38. When HTTP/2 was enabled for a http: host or H2Upgrade was enabled for h2 on a https: host, an Upgrade request from http/1.1 to http/2 that was not the first request on a connection could lead to a misconfiguration and crash. Server that never enabled the h2 protocol or that only enabled it for https: and did not set "H2Upgrade on" are unaffected by this issue.
総合評価: CVE-2019-0197 は中リスク（49.5/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 8.44%、94 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 | 8.74% | 8.44% | -0.30% |
| 2 | 2026-06-15 | 2.23% | 8.74% | +6.51% |
| 3 | 2026-03-17 | — | 2.23% | — |
EPSS の全履歴 （全 51 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 |
|---|---|---|---|---|---|---|
| 4.2 | 3.1 | MEDIUM |
|
1.6 | 2.5 | [email protected] |
| 4.9 | 2.0 | MEDIUM |
|
6.8 | 4.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
medium | CVE-2019-0197: 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-2019-0197 |
debian
|
not yet assigned | CVE-2019-0197 not yet assigned 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-2019-0197 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2019-0197 |
ubuntu
|
low | CVE-2019-0197 low priority: Ubuntu including 1 source packages (apache2), 6 status rows across 6 suites (bionic, cosmic, disco, trusty, upstream, xenial): not-affected 2, released 2, ignored 1, needs-triage 1. | https://ubuntu.com/security/CVE-2019-0197 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| apache | http_server | >= 2.4.34, <= 2.4.38 | cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* |
| 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 | 19.04 | cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* |
| fedoraproject | fedora | 30 | cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* |
| opensuse | leap | 15.0 | cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:* |
| opensuse | leap | 42.3 | cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:* |
| redhat | jboss_core_services | 1.0 | cpe:2.3:a:redhat:jboss_core_services:1.0:*:*:*:*:*:*:* |
| oracle | communications_session_report_manager | 8.0.0 | cpe:2.3:a:oracle:communications_session_report_manager:8.0.0:*:*:*:*:*:*:* |
| oracle | communications_session_report_manager | 8.1.0 | cpe:2.3:a:oracle:communications_session_report_manager:8.1.0:*:*:*:*:*:*:* |
| oracle | communications_session_report_manager | 8.1.1 | cpe:2.3:a:oracle:communications_session_report_manager:8.1.1:*:*:*:*:*:*:* |
| oracle | communications_session_report_manager | 8.2.0 | cpe:2.3:a:oracle:communications_session_report_manager:8.2.0:*:*:*:*:*:*:* |
| oracle | communications_session_route_manager | 8.0.0 | cpe:2.3:a:oracle:communications_session_route_manager:8.0.0:*:*:*:*:*:*:* |
| oracle | communications_session_route_manager | 8.1.0 | cpe:2.3:a:oracle:communications_session_route_manager:8.1.0:*:*:*:*:*:*:* |
| oracle | communications_session_route_manager | 8.1.1 | cpe:2.3:a:oracle:communications_session_route_manager:8.1.1:*:*:*:*:*:*:* |
| oracle | communications_session_route_manager | 8.2.0 | cpe:2.3:a:oracle:communications_session_route_manager:8.2.0:*:*:*:*:*:*:* |
| oracle | enterprise_manager_ops_center | 12.3.3 | cpe:2.3:a:oracle:enterprise_manager_ops_center:12.3.3:*:*:*:*:*:*:* |
| oracle | enterprise_manager_ops_center | 12.4.0 | cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0:*:*:*:*:*:*:* |
| oracle | http_server | 12.2.1.3.0 | cpe:2.3:a:oracle:http_server:12.2.1.3.0:*:*:*:*:*:*:* |
| 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:*:*:*:*:*:*:* |