If an attacker was able to corrupt the methods of an Array object in JavaScript via prototype pollution, they could have achieved execution of attacker-controlled JavaScript code in a privileged context. This vulnerability affects Firefox ESR < 91.9.1, Firefox < 100.0.2, Firefox for Android < 100.3.0, and Thunderbird < 91.9.1.
総合評価: CVE-2022-1802 は中リスク（64.4/100）。CVSS 深刻度は高。悪用される可能性が高い（EPSS 26.71%、98 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。 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 | 67.93% | 26.71% | -41.22% |
| 2 | 2026-03-17 | 66.27% | 67.93% | +1.66% |
| 3 | 2026-02-22 | — | 66.27% | — |
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 |
|---|---|---|---|---|---|---|
| 8.8 | 3.1 | HIGH |
|
2.8 | 5.9 | [email protected] |
| 8.8 | 3.1 | HIGH |
|
2.8 | 5.9 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2022-1802: 4 source package rows (firefox, firefox-esr, librewolf, thunderbird); 128 state rows across 7 repos (3.17-community, 3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 43, open 85. | https://security.alpinelinux.org/vuln/CVE-2022-1802 |
debian
|
not yet assigned | CVE-2022-1802 not yet assigned priority: Debian including 3 source packages (firefox, firefox-esr, thunderbird), 11 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 11. | https://security-tracker.debian.org/tracker/CVE-2022-1802 |
gentoo
|
high | CVE-2022-1802: 2 GLSA(s) (202208-08, 202208-14), 4 atom(s) (mail-client/thunderbird, mail-client/thunderbird-bin, www-client/firefox, www-client/firefox-bin); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2022-1802 |
redhat
|
critical | — | https://access.redhat.com/security/cve/CVE-2022-1802 |
suse
|
high | CVE-2022-1802 severity important: SUSE including 41 source package names (MozillaFirefox-100.0.2-1.1, MozillaFirefox-140.2.0-160000.1.2, …), 255 product×package rows across 83 product lines (Container suse/kiosk/firefox-esr, HPE Helion OpenStack 8, … (83 product lines)): Fixed 255. | https://www.suse.com/security/cve/CVE-2022-1802/ |
ubuntu
|
medium | CVE-2022-1802 medium priority: Ubuntu including 2 source packages (firefox, thunderbird), 18 status rows across 9 suites (bionic, focal, impish, jammy, kinetic, lunar, trusty, upstream, xenial): released 9, not-affected 4, ignored 3, DNE 2. | https://ubuntu.com/security/CVE-2022-1802 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| mozilla | firefox | < 100.0.2 | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* |
| mozilla | firefox_esr | < 91.9.1 | cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* |
| mozilla | thunderbird | < 91.9.1 | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* |
| mozilla | firefox | < 100.3.0 | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://bugzilla.mozilla.org/show_bug.cgi?id=1770137 | Issue Tracking Permissions Required Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2022-19/ | Vendor Advisory |