OpenSSL 1.1.1 introduced a rewritten random number generator (RNG). This was intended to include protection in the event of a fork() system call in order to ensure that the parent and child processes did not share the same RNG state. However this protection was not being used in the default case. A partial mitigation for this issue is that the output from a high precision timer is mixed into the RNG state so the likelihood of a parent and child process sharing state is significantly reduced. If an application already calls OPENSSL_init_crypto() explicitly using OPENSSL_INIT_ATFORK then this problem does not occur at all. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c).
総合評価: CVE-2019-1549 は中リスク(57.2/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 6.23%、93 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 +3.60% 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 | 2.63% | 6.23% | +3.60% |
| 2 | 2026-05-31 | 3.05% | 2.63% | -0.42% |
| 3 | 2026-04-21 | — | 3.05% | — |
EPSS の全履歴 (全 36 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-2019-1549: 3 source package rows (openssl, openssl1.1-compat, openssl3); 25 state rows across 13 repos (3.10-main, 3.11-main, 3.12-main, 3.17-community, 3.17-main, 3.18-community, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-community, edge-main); fixed 15, open 10. | https://security.alpinelinux.org/vuln/CVE-2019-1549 |
debian
|
not yet assigned | CVE-2019-1549 not yet assigned priority: Debian including 1 source packages (openssl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2019-1549 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2019-1549 |
suse
|
medium | — | https://www.suse.com/security/cve/CVE-2019-1549/ |
ubuntu
|
low | CVE-2019-1549 low priority: Ubuntu including 4 source packages (edk2, nodejs, openssl, openssl1.0), 36 status rows across 9 suites (bionic, disco, eoan, focal, groovy, hirsute, trusty, upstream, xenial): not-affected 17, DNE 8, released 6, needs-triage 3, ignored 2. | https://ubuntu.com/security/CVE-2019-1549 |