Memory safety bugs present in Firefox 130, Firefox ESR 128.2, and Thunderbird 128.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.
総合評価: CVE-2024-9402 は中リスク（55.4/100）。CVSS 深刻度は重大。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 | 0.12% | 0.62% | +0.49% |
| 2 | 2025-11-21 | 0.86% | 0.12% | -0.74% |
| 3 | 2025-11-18 | — | 0.86% | — |
EPSS の全履歴 （全 15 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 |
|---|---|---|---|---|---|---|
| 9.8 | 3.1 | CRITICAL |
|
3.9 | 5.9 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2024-9402: 3 source package rows (firefox, firefox-esr, thunderbird); 334 state rows across 3 repos (3.20-community, 3.22-community, edge-community); fixed 0, open 334. | https://security.alpinelinux.org/vuln/CVE-2024-9402 |
debian
|
unimportant | CVE-2024-9402 unimportant priority: Debian including 2 source packages (firefox, thunderbird), 6 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 6. | https://security-tracker.debian.org/tracker/CVE-2024-9402 |
gentoo
|
high | CVE-2024-9402: 3 GLSA(s) (202412-04, 202412-06, 202505-08), 5 atom(s) (dev-lang/spidermonkey, 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-2024-9402 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2024-9402 |
suse
|
high | CVE-2024-9402 severity important: SUSE including 40 source package names (MozillaFirefox-128.3.1-112.231.1, MozillaFirefox-128.3.1-150200.152.155.1, …), 156 product×package rows across 52 product lines (Container suse/kiosk/firefox-esr, Image SLES12-SP5-SAP-Azure-LI-BYOS-Production, … (52 product lines)): Fixed 156. | https://www.suse.com/security/cve/CVE-2024-9402/ |
ubuntu
|
medium | CVE-2024-9402 medium priority: Ubuntu including 9 source packages (firefox, mozjs102, …), 65 status rows across 8 suites (bionic, focal, jammy, noble, oracular, plucky, questing, upstream): DNE 34, needs-triage 10, ignored 9, not-affected 9, released 3. | https://ubuntu.com/security/CVE-2024-9402 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| mozilla | firefox | < 128.3.0 | cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:* |
| mozilla | firefox | < 131.0 | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* |
| mozilla | thunderbird | < 128.3.0 | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* |
| mozilla | thunderbird | >= 129.0, < 131.0 | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| https://bugzilla.mozilla.org/buglist.cgi?bug_id=1872744%2C1897792%2C1911317%2C1913445%2C1914106%2C1914475%2C1914963%2C1915008%2C1916476 | Issue Tracking |
| https://www.mozilla.org/security/advisories/mfsa2024-46/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2024-47/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2024-49/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2024-50/ | Vendor Advisory |