A flaw was found in samba's DNS server. An authenticated user could use this flaw to the RPC server to crash. This RPC server, which also serves protocols other than dnsserver, will be restarted after a short delay, but it is easy for an authenticated non administrative attacker to crash it again as soon as it returns. The Samba DNS server itself will continue to operate, but many RPC services will not.
総合評価: CVE-2020-14383 は中リスク（55.8/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 2.20%、80 パーセンタイル） 根拠: 直近 1 日で EPSS が +1.73% 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 | 0.46% | 2.20% | +1.73% |
| 2 | 2026-03-19 | 0.43% | 0.46% | +0.04% |
| 3 | 2025-11-30 | — | 0.43% | — |
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 |
|---|---|---|---|---|---|---|
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| 4.0 | 2.0 | MEDIUM |
|
8.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2020-14383: 1 source package rows (samba); 90 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-main); fixed 9, open 81. | https://security.alpinelinux.org/vuln/CVE-2020-14383 |
debian
|
not yet assigned | CVE-2020-14383 not yet assigned priority: Debian including 1 source packages (samba), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2020-14383 |
gentoo
|
normal | CVE-2020-14383: 1 GLSA(s) (202012-24), 1 atom(s) (net-fs/samba); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2020-14383 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2020-14383 |
suse
|
medium | CVE-2020-14383 severity moderate: SUSE including 1068 source package names (amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, amazon/suse-sles-15-sp1-chost-byos-v20220127-hvm-ssd-x86_64, …), 2097 product×package rows across 84 product lines (HPE Helion OpenStack 8, Image SLES12-SP5-Azure-BYOS, … (84 product lines)): Fixed 1818, Known Affected 157, Known Not Affected 77, Will Not Fix 45. | https://www.suse.com/security/cve/CVE-2020-14383/ |
ubuntu
|
medium | CVE-2020-14383 medium priority: Ubuntu including 1 source packages (samba), 7 status rows across 7 suites (bionic, focal, groovy, hirsute, trusty, upstream, xenial): released 7. | https://ubuntu.com/security/CVE-2020-14383 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| samba | samba | >= 4.0.0, < 4.11.15 | cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* |
| samba | samba | >= 4.12.0, < 4.12.9 | cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* |
| samba | samba | >= 4.13.0, < 4.13.1 | cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 8.0 | cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1892636 | Issue Tracking Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2024/04/msg00015.html | |
| https://security.gentoo.org/glsa/202012-24 | Third Party Advisory |
| https://www.samba.org/samba/security/CVE-2020-14383.html | Vendor Advisory |