KGDB and KDB allow read and write access to kernel memory, and thus should be restricted during lockdown. An attacker with access to a serial port could trigger the debugger so it is important that the debugger respect the lockdown mode when/if it is triggered. CVSS 3.1 Base Score 6.7 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H).
総合評価: CVE-2022-21499 は中リスク(42.9/100)。CVSS 深刻度は中。悪用される可能性が高い(EPSS 0.62%、45 パーセンタイル) 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 | 0.16% | 0.62% | +0.45% |
| 2 | 2025-11-21 | 0.75% | 0.16% | -0.59% |
| 3 | 2025-11-18 | — | 0.75% | — |
EPSS の全履歴 (全 11 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 |
|---|---|---|---|---|---|---|
| 6.7 | 3.1 | MEDIUM |
|
0.8 | 5.9 | [email protected] |
| 6.7 | 3.1 | MEDIUM |
|
0.8 | 5.9 | [email protected] |
| 4.6 | 2.0 | MEDIUM |
|
3.9 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2022-21499 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2022-21499 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2022-21499 |
suse
|
high | — | https://www.suse.com/security/cve/CVE-2022-21499/ |
ubuntu
|
high | CVE-2022-21499 high priority: Ubuntu including 167 source packages (linux, linux-allwinner, …), 2042 status rows across 15 suites (bionic, focal, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 1576, released 212, not-affected 198, ignored 56. | https://ubuntu.com/security/CVE-2022-21499 |
| URL | タグ |
|---|---|
| http://packetstormsecurity.com/files/168191/Kernel-Live-Patch-Security-Notice-LSN-0089-1.html | Third Party Advisory VDB Entry |
| https://git.kernel.org/linus/eadb2f47a3ced5c64b23b90fd2a3463f63726066 | Mailing List Patch Vendor Advisory |
| https://www.debian.org/security/2022/dsa-5161 | Third Party Advisory |