Apache Subversion's mod_dontdothat module and HTTP clients 1.4.0 through 1.8.16, and 1.9.0 through 1.9.4 are vulnerable to a denial-of-service attack caused by exponential XML entity expansion. The attack can cause the targeted process to consume an excessive amount of CPU resources or memory.
結論預警: CVE-2016-8734 綜合評估為中等風險（53.5/100）：CVSS 技術影響為中級，利用機率偏高（EPSS 6.38%，百分位 93%） 核心證據: EPSS 顯示該漏洞近期被利用的可能性處於高位。 強制指令: 被利用機率偏高—請盤點暴露面並優先安排修補。
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。
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 | 12.88% | 6.38% | -6.50% |
| 2 | 2026-03-04 | 4.74% | 12.88% | +8.14% |
| 3 | 2026-03-01 | — | 4.74% | — |
完整 EPSS 歷史 （共 43 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 |
|---|---|---|---|---|---|---|
| 6.5 | 3.0 | MEDIUM |
|
2.8 | 3.6 | [email protected] |
| 4.0 | 2.0 | MEDIUM |
|
8.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
low | CVE-2016-8734 low priority: Debian including 1 source packages (subversion), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2016-8734 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2016-8734 |
suse
|
low | CVE-2016-8734 severity low: SUSE including 75 source package names (libsvn_auth_gnome_keyring-1-0-1.10.6-1.12, libsvn_auth_gnome_keyring-1-0-1.8.19-25.3.1, …), 104 product×package rows across 29 product lines (SUSE Linux Enterprise Module for Basesystem 15, SUSE Linux Enterprise Module for Basesystem 15 SP1, … (29 product lines)): Fixed 104. | https://www.suse.com/security/cve/CVE-2016-8734/ |
ubuntu
|
low | CVE-2016-8734 low priority: Ubuntu including 1 source packages (subversion), 14 status rows across 14 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, precise, trusty, upstream, xenial, yakkety, zesty): not-affected 9, released 3, ignored 2. | https://ubuntu.com/security/CVE-2016-8734 |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| apache | subversion | 1.4.0 | cpe:2.3:a:apache:subversion:1.4.0:*:*:*:*:*:*:* |
| apache | subversion | 1.4.1 | cpe:2.3:a:apache:subversion:1.4.1:*:*:*:*:*:*:* |
| apache | subversion | 1.4.2 | cpe:2.3:a:apache:subversion:1.4.2:*:*:*:*:*:*:* |
| apache | subversion | 1.4.3 | cpe:2.3:a:apache:subversion:1.4.3:*:*:*:*:*:*:* |
| apache | subversion | 1.4.4 | cpe:2.3:a:apache:subversion:1.4.4:*:*:*:*:*:*:* |
| apache | subversion | 1.4.5 | cpe:2.3:a:apache:subversion:1.4.5:*:*:*:*:*:*:* |
| apache | subversion | 1.4.6 | cpe:2.3:a:apache:subversion:1.4.6:*:*:*:*:*:*:* |
| apache | subversion | 1.5.0 | cpe:2.3:a:apache:subversion:1.5.0:*:*:*:*:*:*:* |
| apache | subversion | 1.5.1 | cpe:2.3:a:apache:subversion:1.5.1:*:*:*:*:*:*:* |
| apache | subversion | 1.5.2 | cpe:2.3:a:apache:subversion:1.5.2:*:*:*:*:*:*:* |
| apache | subversion | 1.5.3 | cpe:2.3:a:apache:subversion:1.5.3:*:*:*:*:*:*:* |
| apache | subversion | 1.5.4 | cpe:2.3:a:apache:subversion:1.5.4:*:*:*:*:*:*:* |
| apache | subversion | 1.5.5 | cpe:2.3:a:apache:subversion:1.5.5:*:*:*:*:*:*:* |
| apache | subversion | 1.5.6 | cpe:2.3:a:apache:subversion:1.5.6:*:*:*:*:*:*:* |
| apache | subversion | 1.5.7 | cpe:2.3:a:apache:subversion:1.5.7:*:*:*:*:*:*:* |
| apache | subversion | 1.5.8 | cpe:2.3:a:apache:subversion:1.5.8:*:*:*:*:*:*:* |
| apache | subversion | 1.6.0 | cpe:2.3:a:apache:subversion:1.6.0:*:*:*:*:*:*:* |
| apache | subversion | 1.6.1 | cpe:2.3:a:apache:subversion:1.6.1:*:*:*:*:*:*:* |
| apache | subversion | 1.6.2 | cpe:2.3:a:apache:subversion:1.6.2:*:*:*:*:*:*:* |
| apache | subversion | 1.6.3 | cpe:2.3:a:apache:subversion:1.6.3:*:*:*:*:*:*:* |
| apache | subversion | 1.6.4 | cpe:2.3:a:apache:subversion:1.6.4:*:*:*:*:*:*:* |
| apache | subversion | 1.6.5 | cpe:2.3:a:apache:subversion:1.6.5:*:*:*:*:*:*:* |
| apache | subversion | 1.6.6 | cpe:2.3:a:apache:subversion:1.6.6:*:*:*:*:*:*:* |
| apache | subversion | 1.6.7 | cpe:2.3:a:apache:subversion:1.6.7:*:*:*:*:*:*:* |
| apache | subversion | 1.6.8 | cpe:2.3:a:apache:subversion:1.6.8:*:*:*:*:*:*:* |
| apache | subversion | 1.6.9 | cpe:2.3:a:apache:subversion:1.6.9:*:*:*:*:*:*:* |
| apache | subversion | 1.6.10 | cpe:2.3:a:apache:subversion:1.6.10:*:*:*:*:*:*:* |
| apache | subversion | 1.6.11 | cpe:2.3:a:apache:subversion:1.6.11:*:*:*:*:*:*:* |
| apache | subversion | 1.6.12 | cpe:2.3:a:apache:subversion:1.6.12:*:*:*:*:*:*:* |
| apache | subversion | 1.6.13 | cpe:2.3:a:apache:subversion:1.6.13:*:*:*:*:*:*:* |
| apache | subversion | 1.6.14 | cpe:2.3:a:apache:subversion:1.6.14:*:*:*:*:*:*:* |
| apache | subversion | 1.6.15 | cpe:2.3:a:apache:subversion:1.6.15:*:*:*:*:*:*:* |
| apache | subversion | 1.6.16 | cpe:2.3:a:apache:subversion:1.6.16:*:*:*:*:*:*:* |
| apache | subversion | 1.6.17 | cpe:2.3:a:apache:subversion:1.6.17:*:*:*:*:*:*:* |
| apache | subversion | 1.6.18 | cpe:2.3:a:apache:subversion:1.6.18:*:*:*:*:*:*:* |
| apache | subversion | 1.6.19 | cpe:2.3:a:apache:subversion:1.6.19:*:*:*:*:*:*:* |
| apache | subversion | 1.6.20 | cpe:2.3:a:apache:subversion:1.6.20:*:*:*:*:*:*:* |
| apache | subversion | 1.6.21 | cpe:2.3:a:apache:subversion:1.6.21:*:*:*:*:*:*:* |
| apache | subversion | 1.6.23 | cpe:2.3:a:apache:subversion:1.6.23:*:*:*:*:*:*:* |
| apache | subversion | 1.7.0 | cpe:2.3:a:apache:subversion:1.7.0:*:*:*:*:*:*:* |
| apache | subversion | 1.7.1 | cpe:2.3:a:apache:subversion:1.7.1:*:*:*:*:*:*:* |
| apache | subversion | 1.7.2 | cpe:2.3:a:apache:subversion:1.7.2:*:*:*:*:*:*:* |
| apache | subversion | 1.7.3 | cpe:2.3:a:apache:subversion:1.7.3:*:*:*:*:*:*:* |
| apache | subversion | 1.7.4 | cpe:2.3:a:apache:subversion:1.7.4:*:*:*:*:*:*:* |
| apache | subversion | 1.7.5 | cpe:2.3:a:apache:subversion:1.7.5:*:*:*:*:*:*:* |
| apache | subversion | 1.7.6 | cpe:2.3:a:apache:subversion:1.7.6:*:*:*:*:*:*:* |
| apache | subversion | 1.7.7 | cpe:2.3:a:apache:subversion:1.7.7:*:*:*:*:*:*:* |
| apache | subversion | 1.7.8 | cpe:2.3:a:apache:subversion:1.7.8:*:*:*:*:*:*:* |
| apache | subversion | 1.7.9 | cpe:2.3:a:apache:subversion:1.7.9:*:*:*:*:*:*:* |
| apache | subversion | 1.7.10 | cpe:2.3:a:apache:subversion:1.7.10:*:*:*:*:*:*:* |
| apache | subversion | 1.7.11 | cpe:2.3:a:apache:subversion:1.7.11:*:*:*:*:*:*:* |
| apache | subversion | 1.7.12 | cpe:2.3:a:apache:subversion:1.7.12:*:*:*:*:*:*:* |
| apache | subversion | 1.7.13 | cpe:2.3:a:apache:subversion:1.7.13:*:*:*:*:*:*:* |
| apache | subversion | 1.7.14 | cpe:2.3:a:apache:subversion:1.7.14:*:*:*:*:*:*:* |
| apache | subversion | 1.7.15 | cpe:2.3:a:apache:subversion:1.7.15:*:*:*:*:*:*:* |
| apache | subversion | 1.7.16 | cpe:2.3:a:apache:subversion:1.7.16:*:*:*:*:*:*:* |
| apache | subversion | 1.7.17 | cpe:2.3:a:apache:subversion:1.7.17:*:*:*:*:*:*:* |
| apache | subversion | 1.7.18 | cpe:2.3:a:apache:subversion:1.7.18:*:*:*:*:*:*:* |
| apache | subversion | 1.7.19 | cpe:2.3:a:apache:subversion:1.7.19:*:*:*:*:*:*:* |
| apache | subversion | 1.7.20 | cpe:2.3:a:apache:subversion:1.7.20:*:*:*:*:*:*:* |
| apache | subversion | 1.8.0 | cpe:2.3:a:apache:subversion:1.8.0:*:*:*:*:*:*:* |
| apache | subversion | 1.8.1 | cpe:2.3:a:apache:subversion:1.8.1:*:*:*:*:*:*:* |
| apache | subversion | 1.8.2 | cpe:2.3:a:apache:subversion:1.8.2:*:*:*:*:*:*:* |
| apache | subversion | 1.8.3 | cpe:2.3:a:apache:subversion:1.8.3:*:*:*:*:*:*:* |
| apache | subversion | 1.8.4 | cpe:2.3:a:apache:subversion:1.8.4:*:*:*:*:*:*:* |
| apache | subversion | 1.8.5 | cpe:2.3:a:apache:subversion:1.8.5:*:*:*:*:*:*:* |
| apache | subversion | 1.8.6 | cpe:2.3:a:apache:subversion:1.8.6:*:*:*:*:*:*:* |
| apache | subversion | 1.8.7 | cpe:2.3:a:apache:subversion:1.8.7:*:*:*:*:*:*:* |
| apache | subversion | 1.8.8 | cpe:2.3:a:apache:subversion:1.8.8:*:*:*:*:*:*:* |
| apache | subversion | 1.8.9 | cpe:2.3:a:apache:subversion:1.8.9:*:*:*:*:*:*:* |
| apache | subversion | 1.8.10 | cpe:2.3:a:apache:subversion:1.8.10:*:*:*:*:*:*:* |
| apache | subversion | 1.8.11 | cpe:2.3:a:apache:subversion:1.8.11:*:*:*:*:*:*:* |
| apache | subversion | 1.8.12 | cpe:2.3:a:apache:subversion:1.8.12:*:*:*:*:*:*:* |
| apache | subversion | 1.8.13 | cpe:2.3:a:apache:subversion:1.8.13:*:*:*:*:*:*:* |
| apache | subversion | 1.8.14 | cpe:2.3:a:apache:subversion:1.8.14:*:*:*:*:*:*:* |
| apache | subversion | 1.8.15 | cpe:2.3:a:apache:subversion:1.8.15:*:*:*:*:*:*:* |
| apache | subversion | 1.8.16 | cpe:2.3:a:apache:subversion:1.8.16:*:*:*:*:*:*:* |
| apache | subversion | 1.9.0 | cpe:2.3:a:apache:subversion:1.9.0:*:*:*:*:*:*:* |
| apache | subversion | 1.9.1 | cpe:2.3:a:apache:subversion:1.9.1:*:*:*:*:*:*:* |
| apache | subversion | 1.9.2 | cpe:2.3:a:apache:subversion:1.9.2:*:*:*:*:*:*:* |
| URL | 標籤 |
|---|---|
| http://www.debian.org/security/2017/dsa-3932 | Third Party Advisory |
| http://www.securityfocus.com/bid/94588 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1037361 | Third Party Advisory VDB Entry |
| https://lists.apache.org/thread.html/7798f5cda1b2a3c70db4be77694b12dec8fcc1a441b00009d44f0e09%40%3Cannounce.apache.org%3E | |
| https://subversion.apache.org/security/CVE-2016-8734-advisory.txt | Issue Tracking Vendor Advisory |
| https://www.oracle.com/security-alerts/cpuoct2020.html |