During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o).
結論預警: CVE-2018-0732 綜合評估為中等風險（59.6/100）：CVSS 技術影響為高級，利用機率偏高（EPSS 49.27%，百分位 99%） 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 | 78.38% | 49.27% | -29.11% |
| 2 | 2026-03-28 | 78.59% | 78.38% | -0.21% |
| 3 | 2026-03-24 | — | 78.59% | — |
完整 EPSS 歷史 （共 57 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 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
high | CVE-2018-0732: 1 source package rows (libressl); 10 state rows across 10 repos (3.10-main, 3.11-main, 3.12-main, 3.17-community, 3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 10, open 0. | https://security.alpinelinux.org/vuln/CVE-2018-0732 |
debian
|
low | CVE-2018-0732 low priority: Debian including 1 source packages (openssl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2018-0732 |
gentoo
|
normal | CVE-2018-0732: 1 GLSA(s) (201811-03), 1 atom(s) (dev-libs/openssl); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2018-0732 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2018-0732 |
suse
|
medium | CVE-2018-0732 severity moderate: SUSE including 577 source package names (0.1.75:openssl-1.1.0i-3.3.1, 0.9.1:libopenssl1_0_0-1.0.2j-60.30.1, …), 1152 product×package rows across 149 product lines (Container caasp/v4/caaspctl-tooling, Container caasp/v4/cilium, … (149 product lines)): Fixed 760, Known Not Affected 235, Known Affected 157. | https://www.suse.com/security/cve/CVE-2018-0732/ |
ubuntu
|
low | CVE-2018-0732 low priority: Ubuntu including 3 source packages (openssl, openssl098, openssl1.0), 21 status rows across 7 suites (artful, bionic, cosmic, disco, trusty, upstream, xenial): DNE 10, released 8, needs-triage 3. | https://ubuntu.com/security/CVE-2018-0732 |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| openssl | openssl | >= 1.0.2, <= 1.0.2o | cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* |
| openssl | openssl | >= 1.1.0, <= 1.1.0h | cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 12.04 | cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* |
| canonical | ubuntu_linux | 14.04 | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 16.04 | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* |
| canonical | ubuntu_linux | 17.10 | cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 18.04 | cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* |
| debian | debian_linux | 8.0 | cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* |
| nodejs | node.js | >= 6.0.0, < 6.8.1 | cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* |
| nodejs | node.js | >= 6.9.0, < 6.14.4 | cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* |
| nodejs | node.js | >= 8.0.0, < 8.8.1 | cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* |
| nodejs | node.js | >= 8.9.0, < 8.11.4 | cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:* |
| nodejs | node.js | >= 10.0.0, < 10.9.0 | cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:* |