The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird before 16.0, Thunderbird ESR 10.x before 10.0.8, and SeaMonkey before 2.13 does not prevent access to properties of a prototype for a standard class, which allows remote attackers to execute arbitrary JavaScript code with chrome privileges via a crafted web site.
結論預警: CVE-2012-4184 綜合評估為中等風險（44.4/100）：CVSS 技術影響為中級，利用機率（EPSS 1.80%） 強制指令: 梳理受影響資產並納入修補計畫。
風險隨態勢動態變化；本站持續評估並同步更新本頁展示內容。
EPSS 日更估計相對被利用可能性；百分位表示該 CVE 在已評分漏洞中的相對排名（越高表示相對更嚴重）。
| # | 日期 | 舊 EPSS 分數 | 新 EPSS 分數 | 變化（新 − 舊） |
|---|---|---|---|---|
| 1 | 2026-06-15 | 1.10% | 1.80% | +0.70% |
| 2 | 2025-03-30 | 1.78% | 1.10% | -0.68% |
| 3 | 2025-03-29 | — | 1.78% | — |
完整 EPSS 歷史 （共 7 筆）
該 CVE 的 CVSS 指標。
| 底座分 | 版本 | 嚴重度 | 向量 | 可利用性 | 影響 | 分數來源 |
|---|---|---|---|---|---|---|
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
gentoo
|
high | CVE-2012-4184: 1 GLSA(s) (201301-01), 14 atom(s) (dev-libs/nss, mail-client/mozilla-thunderbird, …); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2012-4184 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2012-4184 |
suse
|
medium | CVE-2012-4184 severity moderate: SUSE including 67 source package names (MozillaFirefox, MozillaFirefox-10.0.9-0.3.1, …), 118 product×package rows across 43 product lines (SUSE CaaS Platform 4.0, SUSE Enterprise Storage 6, … (43 product lines)): Fixed 87, Known Not Affected 31. | https://www.suse.com/security/cve/CVE-2012-4184/ |
ubuntu
|
medium | CVE-2012-4184 medium priority: Ubuntu including 4 source packages (firefox, seamonkey, thunderbird, xulrunner-1.9.2), 36 status rows across 9 suites (hardy, lucid, natty, oneiric, precise, quantal, raring, saucy, upstream): released 17, DNE 9, ignored 9, needs-triage 1. | https://ubuntu.com/security/CVE-2012-4184 |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| mozilla | firefox | < 10.0.8 | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* |
| mozilla | thunderbird_esr | < 10.0.8 | cpe:2.3:a:mozilla:thunderbird_esr:*:*:*:*:*:*:*:* |
| mozilla | firefox | < 16.0 | cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* |
| mozilla | thunderbird | < 16.0 | cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* |
| mozilla | seamonkey | < 2.13 | cpe:2.3:a:mozilla:seamonkey:*:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 10.04 | cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:* |
| canonical | ubuntu_linux | 11.04 | cpe:2.3:o:canonical:ubuntu_linux:11.04:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 11.10 | cpe:2.3:o:canonical:ubuntu_linux:11.10:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 12.04 | cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* |
| redhat | enterprise_linux_desktop | 5.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_desktop | 6.0 | cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_eus | 6.3 | cpe:2.3:o:redhat:enterprise_linux_eus:6.3:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server | 5.0 | cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_server | 6.0 | cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_workstation | 5.0 | cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:* |
| redhat | enterprise_linux_workstation | 6.0 | cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* |
| suse | linux_enterprise_desktop | 10 | cpe:2.3:o:suse:linux_enterprise_desktop:10:sp4:*:*:*:*:*:* |
| suse | linux_enterprise_desktop | 11 | cpe:2.3:o:suse:linux_enterprise_desktop:11:sp3:*:*:*:*:*:* |
| suse | linux_enterprise_sdk | 10 | cpe:2.3:o:suse:linux_enterprise_sdk:10:sp4:*:*:*:*:*:* |
| suse | linux_enterprise_server | 10 | cpe:2.3:o:suse:linux_enterprise_server:10:sp4:*:*:*:*:*:* |
| suse | linux_enterprise_server | 11 | cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:*:*:* |
| suse | linux_enterprise_server | 11 | cpe:2.3:o:suse:linux_enterprise_server:11:sp3:*:*:*:vmware:*:* |