Perl-Compatible Regular Expression (PCRE) library before 6.2 does not properly count the number of named capturing subpatterns, which allows context-dependent attackers to cause a denial of service (crash) via a regular expression with a large number of named subpatterns, which triggers a buffer overflow. NOTE: this issue was originally subsumed by CVE-2006-7224, but that CVE has been REJECTED and split.
結論預警: CVE-2005-4872 綜合評估為中等風險（46.5/100）：CVSS 技術影響為中級，利用機率（EPSS 2.33%） 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 | 1.50% | 2.33% | +0.83% |
| 2 | 2025-03-30 | 2.99% | 1.50% | -1.49% |
| 3 | 2025-03-29 | — | 2.99% | — |
完整 EPSS 歷史 （共 11 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 |
|---|---|---|---|
debian
|
not yet assigned | CVE-2005-4872 not yet assigned priority: Debian including 1 source packages (pcre3), 2 status rows across 2 suites (bookworm, bullseye): resolved 2. | https://security-tracker.debian.org/tracker/CVE-2005-4872 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2005-4872 |
ubuntu
|
low | CVE-2005-4872 low priority: Ubuntu including 1 source packages (pcre3), 5 status rows across 5 suites (dapper, edgy, feisty, gutsy, upstream): not-affected 4, released 1. | https://ubuntu.com/security/CVE-2005-4872 |