xrdp is an open source remote desktop protocol (RDP) server. In versions prior to 0.9.23 improper handling of session establishment errors allows bypassing OS-level session restrictions. The `auth_start_session` function can return non-zero (1) value on, e.g., PAM error which may result in in session restrictions such as max concurrent sessions per user by PAM (ex ./etc/security/limits.conf) to be bypassed. Users (administrators) don't use restrictions by PAM are not affected. This issue has been addressed in release version 0.9.23. Users are advised to upgrade. There are no known workarounds for this issue.
総合評価: CVE-2023-40184 は低リスク(28.3/100)。CVSS 深刻度は低。悪用される可能性が高い(EPSS 0.73%、49 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 | 2026-06-15 | 0.06% | 0.73% | +0.67% |
| 2 | 2026-04-25 | 0.05% | 0.06% | +0.01% |
| 3 | 2025-11-21 | — | 0.05% | — |
EPSS の全履歴 (全 15 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] |
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
low | CVE-2023-40184: 1 source package rows (xrdp); 14 state rows across 6 repos (3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 6, open 8. | https://security.alpinelinux.org/vuln/CVE-2023-40184 |
debian
|
not yet assigned | CVE-2023-40184 not yet assigned priority: Debian including 1 source packages (xrdp), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2023-40184 |
suse
|
medium | — | https://www.suse.com/security/cve/CVE-2023-40184/ |
ubuntu
|
medium | CVE-2023-40184 medium priority: Ubuntu including 1 source packages (xrdp), 12 status rows across 12 suites (bionic, focal, jammy, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): released 6, not-affected 3, ignored 2, needs-triage 1. | https://ubuntu.com/security/CVE-2023-40184 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| neutrinolabs | xrdp | < 0.9.23 | cpe:2.3:a:neutrinolabs:xrdp:*:*:*:*:*:*:*:* |