Ruby 1.8.5 and earlier, 1.8.6 through 1.8.6-p286, 1.8.7 through 1.8.7-p71, and 1.9 through r18423 does not properly restrict access to critical variables and methods at various safe levels, which allows context-dependent attackers to bypass intended access restrictions via (1) untrace_var, (2) $PROGRAM_NAME, and (3) syslog at safe level 4, and (4) insecure methods at safe levels 1 through 3.
結論預警: CVE-2008-3655 綜合評估為高可利用風險（78.9/100）：CVSS 技術影響為高級，利用機率偏高（EPSS 14.09%，百分位 96%） 核心證據: 已收錄 4 筆公開利用參考（Exploit-DB）。 強制指令: 存在公開利用—請盤點暴露面、落實緩解措施並優先修補。
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。
| EDB-ID | 來源 | 類型 | 公開時間 | 連結 |
|---|---|---|---|---|
| 32223 | exploit_db | edb | 2008-08-11 | Exploit-DB ↗ |
| 32224 | exploit_db | edb | 2008-08-11 | Exploit-DB ↗ |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ | |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 2026-06-18 | 13.83% | 14.09% | +0.26% |
| 2 | 2026-06-15 | 47.52% | 13.83% | -33.69% |
| 3 | 2026-06-03 | — | 47.52% | — |
完整 EPSS 歷史 （共 27 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 |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
gentoo
|
normal | CVE-2008-3655: 1 GLSA(s) (200812-17), 1 atom(s) (dev-lang/ruby); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2008-3655 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2008-3655 |
ubuntu
|
low | CVE-2008-3655 low priority: Ubuntu including 2 source packages (ruby1.8, ruby1.9), 24 status rows across 12 suites (dapper, feisty, gutsy, hardy, intrepid, jaunty, karmic, lucid, maverick, natty, oneiric, upstream): released 10, not-affected 7, ignored 4, DNE 3. | https://ubuntu.com/security/CVE-2008-3655 |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| ruby-lang | ruby | <= 1.8.5 | cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* |
| ruby-lang | ruby | 1.6.8 | cpe:2.3:a:ruby-lang:ruby:1.6.8:*:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.0 | cpe:2.3:a:ruby-lang:ruby:1.8.0:*:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.1 | cpe:2.3:a:ruby-lang:ruby:1.8.1:*:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.1 | cpe:2.3:a:ruby-lang:ruby:1.8.1:-9:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.2 | cpe:2.3:a:ruby-lang:ruby:1.8.2:*:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.2 | cpe:2.3:a:ruby-lang:ruby:1.8.2:preview2:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.2 | cpe:2.3:a:ruby-lang:ruby:1.8.2:preview3:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.2 | cpe:2.3:a:ruby-lang:ruby:1.8.2:preview4:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.3 | cpe:2.3:a:ruby-lang:ruby:1.8.3:*:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.3 | cpe:2.3:a:ruby-lang:ruby:1.8.3:preview1:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.3 | cpe:2.3:a:ruby-lang:ruby:1.8.3:preview2:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.3 | cpe:2.3:a:ruby-lang:ruby:1.8.3:preview3:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.4 | cpe:2.3:a:ruby-lang:ruby:1.8.4:*:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.4 | cpe:2.3:a:ruby-lang:ruby:1.8.4:preview1:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.4 | cpe:2.3:a:ruby-lang:ruby:1.8.4:preview2:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.4 | cpe:2.3:a:ruby-lang:ruby:1.8.4:preview3:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.5 | cpe:2.3:a:ruby-lang:ruby:1.8.5:p11:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.5 | cpe:2.3:a:ruby-lang:ruby:1.8.5:p113:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.5 | cpe:2.3:a:ruby-lang:ruby:1.8.5:p115:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.5 | cpe:2.3:a:ruby-lang:ruby:1.8.5:p12:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.5 | cpe:2.3:a:ruby-lang:ruby:1.8.5:p2:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.5 | cpe:2.3:a:ruby-lang:ruby:1.8.5:p35:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.5 | cpe:2.3:a:ruby-lang:ruby:1.8.5:preview1:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.5 | cpe:2.3:a:ruby-lang:ruby:1.8.5:preview2:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.5 | cpe:2.3:a:ruby-lang:ruby:1.8.5:preview3:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.5 | cpe:2.3:a:ruby-lang:ruby:1.8.5:preview4:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.5 | cpe:2.3:a:ruby-lang:ruby:1.8.5:preview5:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.6 | cpe:2.3:a:ruby-lang:ruby:1.8.6:*:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.6 | cpe:2.3:a:ruby-lang:ruby:1.8.6:p110:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.6 | cpe:2.3:a:ruby-lang:ruby:1.8.6:p111:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.6 | cpe:2.3:a:ruby-lang:ruby:1.8.6:p114:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.6 | cpe:2.3:a:ruby-lang:ruby:1.8.6:p230:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.6 | cpe:2.3:a:ruby-lang:ruby:1.8.6:p286:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.6 | cpe:2.3:a:ruby-lang:ruby:1.8.6:p36:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.6 | cpe:2.3:a:ruby-lang:ruby:1.8.6:preview1:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.6 | cpe:2.3:a:ruby-lang:ruby:1.8.6:preview2:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.6 | cpe:2.3:a:ruby-lang:ruby:1.8.6:preview3:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.7 | cpe:2.3:a:ruby-lang:ruby:1.8.7:*:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.7 | cpe:2.3:a:ruby-lang:ruby:1.8.7:p17:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.7 | cpe:2.3:a:ruby-lang:ruby:1.8.7:p22:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.7 | cpe:2.3:a:ruby-lang:ruby:1.8.7:p71:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.7 | cpe:2.3:a:ruby-lang:ruby:1.8.7:preview1:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.7 | cpe:2.3:a:ruby-lang:ruby:1.8.7:preview2:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.7 | cpe:2.3:a:ruby-lang:ruby:1.8.7:preview3:*:*:*:*:*:* |
| ruby-lang | ruby | 1.8.7 | cpe:2.3:a:ruby-lang:ruby:1.8.7:preview4:*:*:*:*:*:* |
| ruby-lang | ruby | 1.9.0 | cpe:2.3:a:ruby-lang:ruby:1.9.0:*:*:*:*:*:*:* |