In ZeroMQ before version 4.3.3, there is a denial-of-service vulnerability. Users with TCP transport public endpoints, even with CURVE/ZAP enabled, are impacted. If a raw TCP socket is opened and connected to an endpoint that is fully configured with CURVE/ZAP, legitimate clients will not be able to exchange any message. Handshakes complete successfully, and messages are delivered to the library, but the server application never receives them. This is patched in version 4.3.3.
総合評価: CVE-2020-15166 は中リスク(63.5/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 3.41%、87 パーセンタイル) 根拠: 直近 1 日で EPSS が +3.00% 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 | 0.41% | 3.41% | +3.00% |
| 2 | 2026-02-11 | 0.30% | 0.41% | +0.11% |
| 3 | 2025-11-21 | — | 0.30% | — |
EPSS の全履歴 (全 25 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 |
|---|---|---|---|---|---|---|
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
high | CVE-2020-15166: 1 source package rows (zeromq); 10 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 10, open 0. | https://security.alpinelinux.org/vuln/CVE-2020-15166 |
debian
|
not yet assigned | CVE-2020-15166 not yet assigned priority: Debian including 1 source packages (zeromq3), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2020-15166 |
gentoo
|
normal | CVE-2020-15166: 1 GLSA(s) (202009-12), 1 atom(s) (net-libs/zeromq); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2020-15166 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2020-15166 |
ubuntu
|
medium | CVE-2020-15166 medium priority: Ubuntu including 1 source packages (zeromq3), 16 status rows across 16 suites (bionic, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 10, released 5, ignored 1. | https://ubuntu.com/security/CVE-2020-15166 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| zeromq | libzmq | < 4.3.3 | cpe:2.3:a:zeromq:libzmq:*:*:*:*:*:*:*:* |
| fedoraproject | fedora | 32 | cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* |
| fedoraproject | fedora | 33 | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://github.com/zeromq/libzmq/pull/3913 | Patch Third Party Advisory |
| https://github.com/zeromq/libzmq/pull/3973 | Patch Third Party Advisory |
| https://github.com/zeromq/libzmq/security/advisories/GHSA-25wp-cf8g-938m | Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2020/11/msg00017.html | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BZ5IMNQXDB52JFBXHFLK4AHVORFELNNG/ | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YFW2ZELCCPS4VLU4OSJOH5YL6KFKTFYW/ | |
| https://security.gentoo.org/glsa/202009-12 | Third Party Advisory |