Buffer overflow in sshd in OpenSSH 2.3.1 through 3.3 may allow remote attackers to execute arbitrary code via a large number of responses during challenge response authentication when OpenBSD is using PAM modules with interactive keyboard authentication (PAMAuthenticationViaKbdInt).
结论预警: CVE-2002-0640 综合评估为高可利用风险（84.2/100）：CVSS 技术影响为严重级，利用概率偏高（EPSS 27.32%，百分位 98%） 核心证据: 已收录 2 条公开利用参考（Exploit-DB）。 强制指令: 存在公开利用—请排查暴露面、落实缓解措施并优先修补。
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。
| EDB-ID | 来源 | 类型 | 公开时间 | 链接 |
|---|---|---|---|---|
| 21579 | exploit_db | edb | 2002-06-24 | Exploit-DB ↗ |
| 21578 | exploit_db | edb | 2002-06-24 | Exploit-DB ↗ |
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 | 66.96% | 27.32% | -39.64% |
| 2 | 2026-02-12 | 64.84% | 66.96% | +2.13% |
| 3 | 2025-12-28 | — | 64.84% | — |
完整 EPSS 历史 （共 20 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 |
|---|---|---|---|---|---|---|
| 10.0 | 2.0 | HIGH |
|
10.0 | 10.0 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
high | CVE-2002-0640 high priority: Debian including 1 source packages (openssh), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2002-0640 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2002-0640 |
suse
|
critical | CVE-2002-0640 severity critical: SUSE including 8 source package names (openssh, openssh-askpass-gnome, …), 223 product×package rows across 46 product lines (SUSE CaaS Platform 4.0, SUSE Enterprise Storage 7.1, … (46 product lines)): Known Not Affected 223. | https://www.suse.com/security/cve/CVE-2002-0640/ |
| 厂商 | 产品 | 版本 | 原始 CPE |
|---|---|---|---|
| openbsd | openssh | 1.2.2 | cpe:2.3:a:openbsd:openssh:1.2.2:*:*:*:*:*:*:* |
| openbsd | openssh | 1.2.3 | cpe:2.3:a:openbsd:openssh:1.2.3:*:*:*:*:*:*:* |
| openbsd | openssh | 2.1 | cpe:2.3:a:openbsd:openssh:2.1:*:*:*:*:*:*:* |
| openbsd | openssh | 2.1.1 | cpe:2.3:a:openbsd:openssh:2.1.1:*:*:*:*:*:*:* |
| openbsd | openssh | 2.2 | cpe:2.3:a:openbsd:openssh:2.2:*:*:*:*:*:*:* |
| openbsd | openssh | 2.3 | cpe:2.3:a:openbsd:openssh:2.3:*:*:*:*:*:*:* |
| openbsd | openssh | 2.5 | cpe:2.3:a:openbsd:openssh:2.5:*:*:*:*:*:*:* |
| openbsd | openssh | 2.5.1 | cpe:2.3:a:openbsd:openssh:2.5.1:*:*:*:*:*:*:* |
| openbsd | openssh | 2.5.2 | cpe:2.3:a:openbsd:openssh:2.5.2:*:*:*:*:*:*:* |
| openbsd | openssh | 2.9 | cpe:2.3:a:openbsd:openssh:2.9:*:*:*:*:*:*:* |
| openbsd | openssh | 2.9.9 | cpe:2.3:a:openbsd:openssh:2.9.9:*:*:*:*:*:*:* |
| openbsd | openssh | 2.9p1 | cpe:2.3:a:openbsd:openssh:2.9p1:*:*:*:*:*:*:* |
| openbsd | openssh | 2.9p2 | cpe:2.3:a:openbsd:openssh:2.9p2:*:*:*:*:*:*:* |
| openbsd | openssh | 3.0 | cpe:2.3:a:openbsd:openssh:3.0:*:*:*:*:*:*:* |
| openbsd | openssh | 3.0.1 | cpe:2.3:a:openbsd:openssh:3.0.1:*:*:*:*:*:*:* |
| openbsd | openssh | 3.0.1p1 | cpe:2.3:a:openbsd:openssh:3.0.1p1:*:*:*:*:*:*:* |
| openbsd | openssh | 3.0.2 | cpe:2.3:a:openbsd:openssh:3.0.2:*:*:*:*:*:*:* |
| openbsd | openssh | 3.0.2p1 | cpe:2.3:a:openbsd:openssh:3.0.2p1:*:*:*:*:*:*:* |
| openbsd | openssh | 3.0p1 | cpe:2.3:a:openbsd:openssh:3.0p1:*:*:*:*:*:*:* |
| openbsd | openssh | 3.1 | cpe:2.3:a:openbsd:openssh:3.1:*:*:*:*:*:*:* |
| openbsd | openssh | 3.1p1 | cpe:2.3:a:openbsd:openssh:3.1p1:*:*:*:*:*:*:* |
| openbsd | openssh | 3.2 | cpe:2.3:a:openbsd:openssh:3.2:*:*:*:*:*:*:* |
| openbsd | openssh | 3.2.2p1 | cpe:2.3:a:openbsd:openssh:3.2.2p1:*:*:*:*:*:*:* |
| openbsd | openssh | 3.2.3p1 | cpe:2.3:a:openbsd:openssh:3.2.3p1:*:*:*:*:*:*:* |
| openbsd | openssh | 3.3 | cpe:2.3:a:openbsd:openssh:3.3:*:*:*:*:*:*:* |
| openbsd | openssh | 3.3p1 | cpe:2.3:a:openbsd:openssh:3.3p1:*:*:*:*:*:*:* |