A missing check on incoming client requests can be exploited to cause a situation where the Kea server's lease storage contains leases which are rejected as invalid when the server tries to load leases from storage on restart. If the number of such leases exceeds a hard-coded limit in the Kea code, a server trying to restart will conclude that there is a problem with its lease store and give up. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2
総合評価: CVE-2019-6474 は低リスク(39.4/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.71%、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 | 2026-06-23 | 1.13% | 0.71% | -0.42% |
| 2 | 2026-06-15 | 1.59% | 1.13% | -0.47% |
| 3 | 2025-11-21 | — | 1.59% | — |
EPSS の全履歴 (全 12 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 |
|---|---|---|---|---|---|---|
| 5.7 | 3.1 | MEDIUM |
|
2.1 | 3.6 | [email protected] |
| 6.5 | 3.1 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| 6.1 | 2.0 | MEDIUM |
|
6.5 | 6.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
medium | CVE-2019-6474: 1 source package rows (kea); 8 state rows across 8 repos (3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, 3.22-main, edge-community, edge-main); fixed 8, open 0. | https://security.alpinelinux.org/vuln/CVE-2019-6474 |
debian
|
not yet assigned | CVE-2019-6474 not yet assigned priority: Debian including 1 source packages (isc-kea), 4 status rows across 4 suites (bookworm, forky, sid, trixie): resolved 4. | https://security-tracker.debian.org/tracker/CVE-2019-6474 |
ubuntu
|
medium | CVE-2019-6474 medium priority: Ubuntu including 1 source packages (isc-kea), 17 status rows across 17 suites (bionic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, trusty, upstream, xenial): not-affected 8, ignored 7, DNE 1, released 1. | https://ubuntu.com/security/CVE-2019-6474 |
| URL | タグ |
|---|---|
| https://kb.isc.org/docs/cve-2019-6474 | Vendor Advisory |