A vulnerability in register allocation in JavaScript can lead to type confusion, allowing for an arbitrary read and write. This leads to remote code execution inside the sandboxed content process when triggered. This vulnerability affects Firefox ESR < 60.2.2 and Firefox < 62.0.3.
総合評価: CVE-2018-12386 は悪用リスクが高い(80.3/100)。CVSS 深刻度は高。悪用される可能性が高い(EPSS 37.99%、97 パーセンタイル) 根拠: 公開エクスプロイトが 1 件参照されています(Exploit-DB)。 推奨対応: 公開エクスプロイトが確認されています。影響範囲の確認、緩和策の適用、パッチ適用を優先してください。
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。
| EDB-ID | ソース | 種別 | 公開 | リンク |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 2026-05-04 | 39.10% | 37.99% | -1.11% |
| 2 | 2025-12-28 | 40.83% | 39.10% | -1.73% |
| 3 | 2025-12-27 | — | 40.83% | — |
EPSS の全履歴 (全 29 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 |
|---|---|---|---|---|---|---|
| 8.1 | 3.0 | HIGH |
|
2.8 | 5.2 | [email protected] |
| 5.8 | 2.0 | MEDIUM |
|
8.6 | 4.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2018-12386 not yet assigned priority: Debian including 2 source packages (firefox, firefox-esr), 6 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 6. | https://security-tracker.debian.org/tracker/CVE-2018-12386 |
gentoo
|
high | CVE-2018-12386: 1 GLSA(s) (201810-01), 2 atom(s) (www-client/firefox, www-client/firefox-bin); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2018-12386 |
redhat
|
critical | — | https://access.redhat.com/security/cve/CVE-2018-12386 |
suse
|
high | CVE-2018-12386 severity important: SUSE including 74 source package names (MozillaFirefox-102.11.0-150200.152.87.1, MozillaFirefox-115.10.0-150200.152.134.1, …), 495 product×package rows across 60 product lines (Image SLES12-SP5-Azure-BYOS, Image SLES12-SP5-Azure-Basic-On-Demand, … (60 product lines)): Fixed 495. | https://www.suse.com/security/cve/CVE-2018-12386/ |
ubuntu
|
medium | CVE-2018-12386 medium priority: Ubuntu including 4 source packages (firefox, mozjs38, mozjs52, thunderbird), 64 status rows across 16 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, trusty, upstream, xenial): released 32, DNE 23, ignored 9. | https://ubuntu.com/security/CVE-2018-12386 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| redhat | enterprise_linux_desktop | 6.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_desktop | 7.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server | 6.0 | cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server | 7.0 | cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_aus | 7.6 | cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_eus | 7.5 | cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_eus | 7.6 | cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server_tus | 7.6 | cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* |
| redhat | enterprise_linux_workstation | 6.0 | cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_workstation | 7.0 | cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* |
| debian | debian_linux | 9.0 | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 14.04 | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 16.04 | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 18.04 | cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* |
| mozilla | firefox | < 60.2.2 | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* |
| mozilla | firefox | < 62.0.3 | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* |
| URL | タグ |
|---|---|
| http://www.securityfocus.com/bid/105460 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1041770 | Third Party Advisory VDB Entry |
| https://access.redhat.com/errata/RHSA-2018:2881 | Third Party Advisory |
| https://access.redhat.com/errata/RHSA-2018:2884 | Third Party Advisory |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1493900 | Exploit Issue Tracking Patch Vendor Advisory |
| https://security.gentoo.org/glsa/201810-01 | Third Party Advisory |
| https://usn.ubuntu.com/3778-1/ | Third Party Advisory |
| https://www.debian.org/security/2018/dsa-4310 | Third Party Advisory |
| https://www.mozilla.org/security/advisories/mfsa2018-24/ | Vendor Advisory |