In situations where an attacker receives automated notification of the success or failure of a decryption attempt an attacker, after sending a very large number of messages to be decrypted, can recover a CMS/PKCS7 transported encryption key or decrypt any RSA encrypted message that was encrypted with the public RSA key, using a Bleichenbacher padding oracle attack. Applications are not affected if they use a certificate together with the private RSA key to the CMS_decrypt or PKCS7_decrypt functions to select the correct recipient info to decrypt. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c). Fixed in OpenSSL 1.1.0l (Affected 1.1.0-1.1.0k). Fixed in OpenSSL 1.0.2t (Affected 1.0.2-1.0.2s).
総合評価: CVE-2019-1563 は中リスク（46.4/100）。CVSS 深刻度は低。悪用される可能性が高い（EPSS 3.84%、89 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 | 2026-06-23 | 3.34% | 3.84% | +0.50% |
| 2 | 2026-06-15 | 1.12% | 3.34% | +2.22% |
| 3 | 2026-05-28 | — | 1.12% | — |
EPSS の全履歴 （全 53 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-2019-1563: 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-2019-1563 |
debian
|
not yet assigned | CVE-2019-1563 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-2019-1563 |
gentoo
|
low | CVE-2019-1563: 1 GLSA(s) (201911-04), 1 atom(s) (dev-libs/openssl); latest impact low. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2019-1563 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2019-1563 |
suse
|
low | CVE-2019-1563 severity low: SUSE including 485 source package names (0.1.0:libopenssl1_1-1.1.0i-14.3.1, 0.1.75:libopenssl1_1-1.1.0i-14.3.1, …), 954 product×package rows across 169 product lines (Container caasp/v4/389-ds, Container caasp/v4/busybox, … (169 product lines)): Fixed 671, Known Affected 157, Known Not Affected 126. | https://www.suse.com/security/cve/CVE-2019-1563/ |
ubuntu
|
low | CVE-2019-1563 low priority: Ubuntu including 4 source packages (edk2, nodejs, openssl, openssl1.0), 72 status rows across 18 suites (bionic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 28, released 18, DNE 17, ignored 3, needed 3, needs-triage 3. | https://ubuntu.com/security/CVE-2019-1563 |