NTP before 4.2.8p9 changes the peer structure to the interface it receives the response from a source, which allows remote attackers to cause a denial of service (prevent communication with a source) by sending a response for a source to an interface the source does not use.
総合評価: CVE-2016-7429 は中リスク(49.8/100)。CVSS 深刻度は低。悪用される可能性が高い(EPSS 7.42%、94 パーセンタイル) 根拠: EPSS 上、短期間での悪用可能性は高い水準です。 直近 1 日で EPSS が +2.21% 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: 悪用可能性が高いため、影響範囲の確認と修補の優先付けを推奨します。
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 | 5.21% | 7.42% | +2.21% |
| 2 | 2026-01-18 | 24.15% | 5.21% | -18.94% |
| 3 | 2025-12-28 | — | 24.15% | — |
EPSS の全履歴 (全 19 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 |
|---|---|---|---|---|---|---|
| 3.7 | 3.0 | LOW |
|
2.2 | 1.4 | [email protected] |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2016-7429 not yet assigned priority: Debian including 1 source packages (ntp), 1 status rows across 1 suites (bullseye): resolved 1. | https://security-tracker.debian.org/tracker/CVE-2016-7429 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2016-7429 |
suse
|
low | CVE-2016-7429 severity low: SUSE including 27 source package names (ntp-4.2.6p5-25.el7_3.1, ntp-4.2.8p10-63.3, …), 87 product×package rows across 56 product lines (Image SLES12-SP5-Azure-BYOS, Image SLES12-SP5-Azure-Basic-On-Demand, … (56 product lines)): Fixed 87. | https://www.suse.com/security/cve/CVE-2016-7429/ |
ubuntu
|
low | CVE-2016-7429 low priority: Ubuntu including 1 source packages (ntp), 6 status rows across 6 suites (precise, trusty, upstream, xenial, yakkety, zesty): released 4, not-affected 2. | https://ubuntu.com/security/CVE-2016-7429 |
| URL | タグ |
|---|---|
| http://nwtime.org/ntp428p9_release/ | Release Notes Vendor Advisory |
| http://rhn.redhat.com/errata/RHSA-2017-0252.html | |
| http://support.ntp.org/bin/view/Main/NtpBug3072 | Issue Tracking Mitigation Vendor Advisory |
| http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities | Vendor Advisory |
| http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html | |
| http://www.securityfocus.com/bid/94453 | |
| http://www.securitytracker.com/id/1037354 | |
| https://bto.bluecoat.com/security-advisory/sa139 | |
| https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_us | |
| https://www.kb.cert.org/vuls/id/633847 | Third Party Advisory US Government Resource |