Buffer overflow in the compNewPixmap function in compalloc.c in the Composite extension for the X.org X11 server before 1.4 allows local users to execute arbitrary code by copying data from a large pixel depth pixmap into a smaller pixel depth pixmap.
結論預警: CVE-2007-4730 綜合評估為低風險（31.4/100）：CVSS 技術影響為中級，利用機率偏低（EPSS 0.51%） 強制指令: 持續追蹤利用情報與 EPSS 變化，並適時複評優先級。
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 | 0.08% | 0.51% | +0.43% |
| 2 | 2024-11-06 | 0.05% | 0.08% | +0.03% |
| 3 | 2023-03-07 | — | 0.05% | — |
完整 EPSS 歷史 （共 4 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 |
|
3.1 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2007-4730 not yet assigned priority: Debian including 1 source packages (xorg-server), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2007-4730 |
gentoo
|
high | CVE-2007-4730: 1 GLSA(s) (200710-16), 1 atom(s) (x11-base/xorg-server); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2007-4730 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2007-4730 |
ubuntu
|
medium | CVE-2007-4730 medium priority: Ubuntu including 1 source packages (xorg-server), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): not-affected 2, needs-triage 1, released 1. | https://ubuntu.com/security/CVE-2007-4730 |
This flaw was fixed for Red Hat Enterprise Linux 4 in RHSA-2007-0898: https://rhn.redhat.com/errata/RHSA-2007-0898.html Red Hat Enterprise Linux 5 is not affected by this flaw. More information can be found here: https://bugzilla.redhat.com/show_bug.cgi?id=285991 Red Hat Enterprise Linux 2.1 and 3 do not support the composite extension and are not vulnerable to this flaw.
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| x.org | xorg-server | 1.01 | cpe:2.3:a:x.org:xorg-server:1.01:*:*:*:*:*:*:* |
| x.org | xorg-server | 1.1 | cpe:2.3:a:x.org:xorg-server:1.1:*:*:*:*:*:*:* |
| x.org | xorg-server | 1.02 | cpe:2.3:a:x.org:xorg-server:1.02:*:*:*:*:*:*:* |
| x.org | xorg-server | 1.2 | cpe:2.3:a:x.org:xorg-server:1.2:*:*:*:*:*:*:* |
| x.org | xorg-server | 1.3 | cpe:2.3:a:x.org:xorg-server:1.3:*:*:*:*:*:*:* |