Apache HTTP Server 2.4.53 and earlier may return lengths to applications calling r:wsread() that point past the end of the storage allocated for the buffer.
総合評価: CVE-2022-30556 は高リスク(65.8/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 4.66%、91 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 +4.15% 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 | 0.51% | 4.66% | +4.15% |
| 2 | 2026-03-08 | 0.40% | 0.51% | +0.10% |
| 3 | 2026-03-04 | — | 0.40% | — |
EPSS の全履歴 (全 45 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 |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2022-30556: 1 source package rows (apache2); 7 state rows across 7 repos (3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 7, open 0. | https://security.alpinelinux.org/vuln/CVE-2022-30556 |
debian
|
not yet assigned | CVE-2022-30556 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-2022-30556 |
gentoo
|
high | CVE-2022-30556: 1 GLSA(s) (202208-20), 2 atom(s) (app-admin/apache-tools, www-servers/apache); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2022-30556 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2022-30556 |
suse
|
medium | CVE-2022-30556 severity moderate: SUSE including 314 source package names (2.8-13.5:apache2-utils-2.4.51-150400.6.3.1, 4.3.1.9.7.1:apache2-2.4.51-150400.6.3.1, …), 653 product×package rows across 101 product lines (Container bci/php-apache, Container suse/manager/4.3/proxy-httpd, … (101 product lines)): Fixed 421, Known Affected 231, Known Not Affected 1. | https://www.suse.com/security/cve/CVE-2022-30556/ |
ubuntu
|
medium | CVE-2022-30556 medium priority: Ubuntu including 1 source packages (apache2), 8 status rows across 8 suites (bionic, focal, impish, jammy, kinetic, trusty, upstream, xenial): released 8. | https://ubuntu.com/security/CVE-2022-30556 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| apache | http_server | < 2.4.54 | cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* |
| netapp | clustered_data_ontap | — | cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:* |
| fedoraproject | fedora | 35 | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* |
| fedoraproject | fedora | 36 | cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://www.openwall.com/lists/oss-security/2022/06/08/7 | Mailing List Third Party Advisory |
| https://httpd.apache.org/security/vulnerabilities_24.html | Vendor Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7QUGG2QZWHTITMABFLVXA4DNYUOTPWYQ/ | Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YPY2BLEVJWFH34AX77ZJPLD2OOBYR6ND/ | Third Party Advisory |
| https://security.gentoo.org/glsa/202208-20 | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20220624-0005/ | Third Party Advisory |