Use after free in WebAuthentication in Google Chrome prior to 83.0.4103.97 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.
総合評価: CVE-2020-6493 は中リスク(64.3/100)。CVSS 深刻度は重大。悪用される可能性が高い(EPSS 1.68%、74 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 | 1.64% | 1.68% | +0.05% |
| 2 | 2025-11-22 | 1.98% | 1.64% | -0.34% |
| 3 | 2025-10-15 | — | 1.98% | — |
EPSS の全履歴 (全 18 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 |
|---|---|---|---|---|---|---|
| 9.6 | 3.1 | CRITICAL |
|
2.8 | 6.0 | [email protected] |
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2020-6493 not yet assigned priority: Debian including 1 source packages (chromium), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2020-6493 |
gentoo
|
normal | CVE-2020-6493: 1 GLSA(s) (202006-02), 2 atom(s) (www-client/chromium, www-client/google-chrome); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2020-6493 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2020-6493 |
ubuntu
|
medium | CVE-2020-6493 medium priority: Ubuntu including 1 source packages (chromium-browser), 6 status rows across 6 suites (bionic, eoan, focal, trusty, upstream, xenial): released 3, DNE 2, not-affected 1. | https://ubuntu.com/security/CVE-2020-6493 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| chrome | < 83.0.4103.97 | cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* | |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| opensuse | backports | sle-15 | cpe:2.3:o:opensuse:backports:sle-15:sp1:*:*:*:*:*:* |
| opensuse | leap | 15.1 | cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00034.html | Third Party Advisory |
| http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00038.html | Third Party Advisory |
| https://chromereleases.googleblog.com/2020/06/stable-channel-update-for-desktop.html | Vendor Advisory |
| https://crbug.com/1082105 | Permissions Required |
| https://security.gentoo.org/glsa/202006-02 | Third Party Advisory |
| https://www.debian.org/security/2020/dsa-4714 | Third Party Advisory |