The timing attack protection in Rijndael::Enc::ProcessAndXorBlock and Rijndael::Dec::ProcessAndXorBlock in Crypto++ (aka cryptopp) before 5.6.4 may be optimized out by the compiler, which allows attackers to conduct timing attacks.
结论预警: CVE-2016-3995 综合评估为中等风险(57.6/100):CVSS 技术影响为高级,利用概率(EPSS 1.86%) 强制指令: 梳理受影响资产并纳入修补计划。
风险随态势动态变化;本站持续评估并同步更新本页展示内容。
EPSS 日更估计相对被利用可能性;百分位表示该 CVE 在已评分漏洞中的相对排名(越高表示相对更严重)。
| # | 日期 | 旧 EPSS 分数 | 新 EPSS 分数 | 变化(新 − 旧) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 1.03% | 1.86% | +0.83% |
| 2 | 2025-03-30 | 1.59% | 1.03% | -0.57% |
| 3 | 2025-03-29 | — | 1.59% | — |
完整 EPSS 历史 (共 6 条)
该 CVE 的 CVSS 指标。
| 底座分 | 版本 | 严重度 | 向量 | 可利用性 | 影响 | 分数来源 |
|---|---|---|---|---|---|---|
| 7.5 | 3.0 | HIGH |
|
3.9 | 3.6 | [email protected] |
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2016-3995 not yet assigned priority: Debian including 1 source packages (libcrypto++), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2016-3995 |
ubuntu
|
medium | CVE-2016-3995 medium priority: Ubuntu including 1 source packages (libcrypto++), 9 status rows across 9 suites (artful, bionic, precise, trusty, upstream, wily, xenial, yakkety, zesty): not-affected 4, released 3, ignored 2. | https://ubuntu.com/security/CVE-2016-3995 |
| 厂商 | 产品 | 版本 | 原始 CPE |
|---|---|---|---|
| cryptopp | crypto\+\+ | <= 5.6.3 | cpe:2.3:a:cryptopp:crypto\+\+:*:*:*:*:*:*:*:* |
| URL | 标签 |
|---|---|
| http://www.openwall.com/lists/oss-security/2016/04/11/2 | Mailing List Patch Third Party Advisory |
| http://www.securityfocus.com/bid/85975 | Third Party Advisory VDB Entry |
| https://github.com/weidai11/cryptopp/issues/146 | Issue Tracking Patch Third Party Advisory |