An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in Ruby through 2.4.1 and mbstring in PHP through 7.1.5. A heap out-of-bounds write or read occurs in next_state_val() during regular expression compilation. Octal numbers larger than 0xff are not handled correctly in fetch_token() and fetch_token_in_cc(). A malformed regular expression containing an octal number in the form of '\700' would produce an invalid code point value larger than 0xff in next_state_val(), resulting in an out-of-bounds write memory corruption.
総合評価: CVE-2017-9226 は悪用リスクが高い(92/100)。CVSS 深刻度は重大。悪用される可能性が高い(EPSS 7.51%、94 パーセンタイル) 根拠: 公開エクスプロイトが 1 件参照されています(Exploit-DB)。 直近 1 日で EPSS が +6.27% 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: 公開エクスプロイトが確認されています。影響範囲の確認、緩和策の適用、パッチ適用を優先してください。
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。
| EDB-ID | ソース | 種別 | 公開 | リンク |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 1.24% | 7.51% | +6.27% |
| 2 | 2026-05-26 | 1.08% | 1.24% | +0.16% |
| 3 | 2026-05-14 | — | 1.08% | — |
EPSS の全履歴 (全 57 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 |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | [email protected] |
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2017-9226 not yet assigned priority: Debian including 1 source packages (libonig), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2017-9226 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2017-9226 |
suse
|
medium | CVE-2017-9226 severity moderate: SUSE including 208 source package names (apache2-mod_php5-5.2.14-0.7.30.110.1, apache2-mod_php5-5.5.14-108.1, …), 302 product×package rows across 12 product lines (SUSE Linux Enterprise Module for Web and Scripting 12, SUSE Linux Enterprise Server 11 SP1 for Teradata, … (12 product lines)): Fixed 300, Known Not Affected 2. | https://www.suse.com/security/cve/CVE-2017-9226/ |
ubuntu
|
medium | CVE-2017-9226 medium priority: Ubuntu including 4 source packages (libonig, php5, php7.0, php7.1), 25 status rows across 7 suites (artful, bionic, trusty, upstream, xenial, yakkety, zesty): DNE 11, released 6, needs-triage 4, ignored 3, not-affected 1. | https://ubuntu.com/security/CVE-2017-9226 |
| URL | タグ |
|---|---|
| http://www.securityfocus.com/bid/101244 | Third Party Advisory VDB Entry |
| https://access.redhat.com/errata/RHSA-2018:1296 | Third Party Advisory |
| https://github.com/kkos/oniguruma/commit/b4bf968ad52afe14e60a2dc8a95d3555c543353a | Patch Third Party Advisory |
| https://github.com/kkos/oniguruma/commit/f015fbdd95f76438cd86366467bb2b39870dd7c6 | Patch Third Party Advisory |
| https://github.com/kkos/oniguruma/issues/55 | Exploit Issue Tracking Third Party Advisory |