In PHP versions 8.0.* before 8.0.29, 8.1.* before 8.1.20, 8.2.* before 8.2.7 when using SOAP HTTP Digest Authentication, random value generator was not checked for failure, and was using narrower range of values than it should have. In case of random generator failure, it could lead to a disclosure of 31 bits of uninitialized memory from the client to the server, and it also made easier to a malicious server to guess the client's nonce.
総合評価: CVE-2023-3247 は低リスク(27.4/100)。CVSS 深刻度は低。悪用される可能性が高い(EPSS 0.70%、48 パーセンタイル) 推奨対応: 悪用情報と EPSS の推移を監視し、必要に応じて優先度を見直してください。
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 | 2026-06-18 | 0.62% | 0.70% | +0.08% |
| 2 | 2026-06-15 | 0.32% | 0.62% | +0.30% |
| 3 | 2026-05-25 | — | 0.32% | — |
EPSS の全履歴 (全 12 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 |
|---|---|---|---|---|---|---|
| 2.6 | 3.1 | LOW |
|
1.2 | 1.4 | [email protected] |
| 4.3 | 3.1 | MEDIUM |
|
2.8 | 1.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2023-3247 not yet assigned priority: Debian including 2 source packages (php7.4, php8.2), 2 status rows across 2 suites (bookworm, bullseye): resolved 2. | https://security-tracker.debian.org/tracker/CVE-2023-3247 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2023-3247 |
suse
|
medium | CVE-2023-3247 severity moderate: SUSE including 444 source package names (apache2-mod_php7, apache2-mod_php7-7.4.33-150200.3.57.1, …), 1207 product×package rows across 30 product lines (Container bci/php, Container bci/php-apache, … (30 product lines)): Fixed 938, Will Not Fix 269. | https://www.suse.com/security/cve/CVE-2023-3247/ |
ubuntu
|
medium | CVE-2023-3247 medium priority: Ubuntu including 6 source packages (php5, php7.0, php7.2, php7.4, php8.1, php8.2), 54 status rows across 9 suites (bionic, focal, jammy, kinetic, lunar, mantic, trusty, upstream, xenial): DNE 37, released 8, ignored 4, needs-triage 4, not-affected 1. | https://ubuntu.com/security/CVE-2023-3247 |
| URL | タグ |
|---|---|
| https://github.com/php/php-src/security/advisories/GHSA-76gg-c692-v2mw | Patch Vendor Advisory |