Because of an implementation bug the PA-RISC CRYPTO_memcmp function is effectively reduced to only comparing the least significant bit of each byte. This allows an attacker to forge messages that would be considered as authenticated in an amount of tries lower than that guaranteed by the security claims of the scheme. The module can only be compiled by the HP-UX assembler, so that only HP-UX PA-RISC targets are affected. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g).
結論預警: CVE-2018-0733 綜合評估為中等風險(61.6/100):CVSS 技術影響為中級,利用機率偏高(EPSS 8.64%,百分位 94%) 核心證據: EPSS 顯示該漏洞近期被利用的可能性處於高位。 近一日 EPSS 上升 +6.40%,被利用關注度持續升高。 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 | 2.23% | 8.64% | +6.40% |
| 2 | 2026-03-22 | 1.96% | 2.23% | +0.28% |
| 3 | 2025-12-28 | — | 1.96% | — |
完整 EPSS 歷史 (共 27 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 |
|---|---|---|---|---|---|---|
| 5.9 | 3.0 | MEDIUM |
|
2.2 | 3.6 | [email protected] |
| 4.3 | 2.0 | MEDIUM |
|
8.6 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
unimportant | CVE-2018-0733 unimportant 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-2018-0733 |
gentoo
|
normal | CVE-2018-0733: 1 GLSA(s) (201811-21), 1 atom(s) (dev-libs/openssl); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2018-0733 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2018-0733 |
ubuntu
|
medium | CVE-2018-0733 medium priority: Ubuntu including 3 source packages (openssl, openssl098, openssl1.0), 12 status rows across 4 suites (artful, trusty, upstream, xenial): DNE 6, needs-triage 3, not-affected 3. | https://ubuntu.com/security/CVE-2018-0733 |