nginx before versions 1.15.6, 1.14.1 has a vulnerability in the ngx_http_mp4_module, which might allow an attacker to cause infinite loop in a worker process, cause a worker process crash, or might result in worker process memory disclosure by using a specially crafted mp4 file. The issue only affects nginx if it is built with the ngx_http_mp4_module (the module is not built by default) and the .mp4. directive is used in the configuration file. Further, the attack is only possible if an attacker is able to trigger processing of a specially crafted mp4 file with the ngx_http_mp4_module.
総合評価: CVE-2018-16845 は中リスク（62.6/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 9.80%、95 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。 直近 1 日で EPSS が +5.88% 上昇。悪用への関心が高まっている可能性があります。 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 | 2026-06-15 | 3.92% | 9.80% | +5.88% |
| 2 | 2026-06-04 | 4.02% | 3.92% | -0.10% |
| 3 | 2026-05-26 | — | 4.02% | — |
EPSS の全履歴 （全 46 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 |
|---|---|---|---|---|---|---|
| 6.1 | 3.1 | MEDIUM |
|
1.8 | 4.2 | [email protected] |
| 8.2 | 3.0 | HIGH |
|
3.9 | 4.2 | [email protected] |
| 5.8 | 2.0 | MEDIUM |
|
8.6 | 4.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
medium | CVE-2018-16845: 1 source package rows (nginx); 15 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 5. | https://security.alpinelinux.org/vuln/CVE-2018-16845 |
debian
|
not yet assigned | CVE-2018-16845 not yet assigned priority: Debian including 1 source packages (nginx), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2018-16845 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2018-16845 |
suse
|
medium | CVE-2018-16845 severity moderate: SUSE including 25 source package names (nginx, nginx-1.14.2-16.1, …), 42 product×package rows across 21 product lines (SUSE Enterprise Storage 7, SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS, … (21 product lines)): Fixed 23, Known Not Affected 19. | https://www.suse.com/security/cve/CVE-2018-16845/ |
ubuntu
|
medium | CVE-2018-16845 medium priority: Ubuntu including 1 source packages (nginx), 5 status rows across 5 suites (bionic, cosmic, trusty, upstream, xenial): released 5. | https://ubuntu.com/security/CVE-2018-16845 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| f5 | nginx | >= 1.0.7, <= 1.0.15 | cpe:2.3:a:f5:nginx:*:*:*:*:*:*:*:* |
| f5 | nginx | >= 1.1.3, <= 1.15.5 | cpe:2.3:a:f5:nginx:*:*:*:*:*:*:*:* |
| debian | debian_linux | 8.0 | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| 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:*:*:*:lts:*:*:* |
| 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:*:*:*:*:*:*:* |
| opensuse | leap | 15.1 | cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* |
| apple | xcode | < 13.0 | cpe:2.3:a:apple:xcode:*:*:*:*:*:*:*:* |