An issue was discovered in the auth component in Dovecot 2.2 and 2.3 before 2.3.20. When two passdb configuration entries exist with the same driver and args settings, incorrect username_filter and mechanism settings can be applied to passdb definitions. These incorrectly applied settings can lead to an unintended security configuration and can permit privilege escalation in certain configurations. The documentation does not advise against the use of passdb definitions that have the same driver and args settings. One such configuration would be where an administrator wishes to use the same PAM configuration or passwd file for both normal and master users but use the username_filter setting to restrict which of the users is able to be a master user.
総合評価: CVE-2022-30550 は中リスク（62.8/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 1.74%、75 パーセンタイル） 根拠: 直近 1 日で EPSS が +1.43% 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: 影響資産を整理し、修補計画に組み込んでください。
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 | 0.31% | 1.74% | +1.43% |
| 2 | 2026-03-04 | 0.23% | 0.31% | +0.08% |
| 3 | 2026-03-01 | — | 0.23% | — |
EPSS の全履歴 （全 24 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 |
|---|---|---|---|---|---|---|
| 8.8 | 3.1 | HIGH |
|
2.8 | 5.9 | [email protected] |
| 8.8 | 3.1 | HIGH |
|
2.8 | 5.9 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2022-30550: 1 source package rows (dovecot); 69 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 14, open 55. | https://security.alpinelinux.org/vuln/CVE-2022-30550 |
debian
|
not yet assigned | CVE-2022-30550 not yet assigned priority: Debian including 1 source packages (dovecot), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2022-30550 |
gentoo
|
normal | CVE-2022-30550: 1 GLSA(s) (202310-19), 1 atom(s) (net-mail/dovecot); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2022-30550 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2022-30550 |
suse
|
medium | CVE-2022-30550 severity moderate: SUSE including 43 source package names (dovecot, dovecot-2.3.16-3.el8, …), 347 product×package rows across 54 product lines (HPE Helion OpenStack 8, SUSE CaaS Platform 4.0, … (54 product lines)): Fixed 307, Known Not Affected 40. | https://www.suse.com/security/cve/CVE-2022-30550/ |
ubuntu
|
medium | CVE-2022-30550 medium priority: Ubuntu including 1 source packages (dovecot), 14 status rows across 14 suites (bionic, focal, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 6, released 5, needs-triage 3. | https://ubuntu.com/security/CVE-2022-30550 |
| URL | タグ |
|---|---|
| https://dovecot.org/security | Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2022/09/msg00032.html | Mailing List Third Party Advisory |
| https://security.gentoo.org/glsa/202310-19 | Third Party Advisory |
| https://www.dovecot.org/download/ | Product |
| https://www.openwall.com/lists/oss-security/2022/07/08/1 | Mailing List Patch Third Party Advisory |