Apache Tomcat Native 1.2.0 to 1.2.16 and 1.1.23 to 1.1.34 has a flaw that does not properly check OCSP pre-produced responses, which are lists (multiple entries) of certificate statuses. Subsequently, revoked client certificates may not be properly identified, allowing for users to authenticate with revoked certificates to connections that require mutual TLS. Users not using OCSP checks are not affected by this vulnerability.
結論預警: CVE-2018-8020 綜合評估為中等風險（63.7/100）：CVSS 技術影響為高級，利用機率（EPSS 4.20%） 核心證據: 近一日 EPSS 上升 +2.70%，被利用關注度持續升高。 強制指令: 梳理受影響資產並納入修補計畫。
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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% | 4.20% | +2.70% |
| 2 | 2026-02-14 | 1.58% | 1.50% | -0.08% |
| 3 | 2025-11-21 | — | 1.58% | — |
完整 EPSS 歷史 （共 15 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 |
|---|---|---|---|---|---|---|
| 7.4 | 3.0 | HIGH |
|
2.2 | 5.2 | [email protected] |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2018-8020 not yet assigned priority: Debian including 1 source packages (tomcat-native), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2018-8020 |
redhat
|
high | — | https://access.redhat.com/security/cve/CVE-2018-8020 |
suse
|
high | CVE-2018-8020 severity important: SUSE including 7 source package names (libtcnative-1-0, libtcnative-1-0-1.2.17-1.12, …), 108 product×package rows across 77 product lines (HPE Helion OpenStack 8, SUSE CaaS Platform 4.5, … (77 product lines)): Known Not Affected 98, Fixed 10. | https://www.suse.com/security/cve/CVE-2018-8020/ |
ubuntu
|
medium | CVE-2018-8020 medium priority: Ubuntu including 1 source packages (tomcat-native), 19 status rows across 19 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 16, DNE 1, needed 1, released 1. | https://ubuntu.com/security/CVE-2018-8020 |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| debian | debian_linux | 8.0 | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
| apache | tomcat_native | >= 1.1.23, <= 1.1.34 | cpe:2.3:a:apache:tomcat_native:*:*:*:*:*:*:*:* |
| apache | tomcat_native | >= 1.2.0, <= 1.2.16 | cpe:2.3:a:apache:tomcat_native:*:*:*:*:*:*:*:* |