Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2, user supplied/control values for Cookies and any GET variable query Parameter are directly interpolated into the HTML of the page using ast_str_append. The endpoint at GET /httpstatus is the potential vulnerable endpoint relating to asterisk/main /http.c. This issue has been patched in versions 20.7-cert9, 20.18.2, 21.12.1, 22.8.2, and 23.2.2.
総合評価: CVE-2026-23738 は低リスク（16/100）。CVSS 深刻度は低。悪用される可能性が高い（EPSS 0.16%、6 パーセンタイル） 推奨対応: 総合リスクは低く緊急対応は不要です。通常の保守サイクルでパッチを適用し、CVSS / EPSS が上昇したら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 | 2026-06-15 | 0.05% | 0.16% | +0.11% |
| 2 | 2026-04-15 | 0.04% | 0.05% | +0.01% |
| 3 | 2026-04-02 | — | 0.04% | — |
EPSS の全履歴 （全 7 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 |
|---|---|---|---|---|---|---|
| 3.5 | 3.1 | LOW |
|
2.1 | 1.4 | [email protected] |
| 6.1 | 3.1 | MEDIUM |
|
2.8 | 2.7 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2026-23738: 1 source package rows (asterisk); 102 state rows across 6 repos (3.19-main, 3.20-main, 3.21-main, 3.22-main, 3.23-main, edge-main); fixed 0, open 102. | https://security.alpinelinux.org/vuln/CVE-2026-23738 |
debian
|
not yet assigned | CVE-2026-23738 not yet assigned priority: Debian including 1 source packages (asterisk), 2 status rows across 2 suites (bullseye, sid): resolved 2. | https://security-tracker.debian.org/tracker/CVE-2026-23738 |
ubuntu
|
medium | CVE-2026-23738 medium priority: Ubuntu including 1 source packages (asterisk), 7 status rows across 7 suites (bionic, focal, jammy, noble, questing, upstream, xenial): needs-triage 7. | https://ubuntu.com/security/CVE-2026-23738 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| sangoma | asterisk | <= 20.18.2 | cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:* |
| sangoma | asterisk | >= 21.0.0, <= 21.12.1 | cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:* |
| sangoma | asterisk | >= 22.0.0, <= 22.8.2 | cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:* |
| sangoma | asterisk | >= 23.0.0, < 23.2.2 | cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:* |
| sangoma | certified_asterisk | <= 18.9 | cpe:2.3:a:sangoma:certified_asterisk:*:*:*:*:*:*:*:* |
| sangoma | certified_asterisk | 20.7 | cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1:*:*:*:*:*:* |
| sangoma | certified_asterisk | 20.7 | cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1-rc1:*:*:*:*:*:* |
| sangoma | certified_asterisk | 20.7 | cpe:2.3:a:sangoma:certified_asterisk:20.7:cert1-rc2:*:*:*:*:*:* |
| sangoma | certified_asterisk | 20.7 | cpe:2.3:a:sangoma:certified_asterisk:20.7:cert2:*:*:*:*:*:* |
| sangoma | certified_asterisk | 20.7 | cpe:2.3:a:sangoma:certified_asterisk:20.7:cert3:*:*:*:*:*:* |
| sangoma | certified_asterisk | 20.7 | cpe:2.3:a:sangoma:certified_asterisk:20.7:cert4:*:*:*:*:*:* |
| sangoma | certified_asterisk | 20.7 | cpe:2.3:a:sangoma:certified_asterisk:20.7:cert5:*:*:*:*:*:* |
| sangoma | certified_asterisk | 20.7 | cpe:2.3:a:sangoma:certified_asterisk:20.7:cert6:*:*:*:*:*:* |
| sangoma | certified_asterisk | 20.7 | cpe:2.3:a:sangoma:certified_asterisk:20.7:cert7:*:*:*:*:*:* |
| sangoma | certified_asterisk | 20.7 | cpe:2.3:a:sangoma:certified_asterisk:20.7:cert8:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://github.com/asterisk/asterisk/security/advisories/GHSA-v6hp-wh3r-cwxh | Vendor Advisory |