ISC DHCP 4.1.2 through 4.2.4 and 4.1-ESV before 4.1-ESV-R6 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a malformed client identifier.
结论预警: CVE-2012-3571 综合评估为高可利用风险（68.5/100）：CVSS 技术影响为中级，利用概率偏高（EPSS 12.98%，百分位 96%） 核心证据: 已收录 1 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 |
|---|---|---|---|---|
| 37538 | exploit_db | edb | 2012-07-25 | 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 | 17.43% | 12.98% | -4.44% |
| 2 | 2026-06-07 | 20.55% | 17.43% | -3.13% |
| 3 | 2026-03-26 | — | 20.55% | — |
完整 EPSS 历史 （共 16 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 |
|---|---|---|---|---|---|---|
| 6.1 | 2.0 | MEDIUM |
|
6.5 | 6.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2012-3571 not yet assigned priority: Debian including 1 source packages (isc-dhcp), 4 status rows across 4 suites (bookworm, bullseye, sid, trixie): resolved 4. | https://security-tracker.debian.org/tracker/CVE-2012-3571 |
gentoo
|
normal | CVE-2012-3571: 1 GLSA(s) (201301-06), 1 atom(s) (net-misc/dhcp); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2012-3571 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2012-3571 |
suse
|
medium | CVE-2012-3571 severity moderate: SUSE including 61 source package names (dhcp-3.1.3.ESV-0.17.1, dhcp-4.2.4.P1-0.5.1, …), 99 product×package rows across 37 product lines (SUSE Linux Enterprise Desktop 11 SP2, SUSE Linux Enterprise Desktop 12, … (37 product lines)): Fixed 99. | https://www.suse.com/security/cve/CVE-2012-3571/ |
ubuntu
|
medium | CVE-2012-3571 medium priority: Ubuntu including 2 source packages (dhcp3, isc-dhcp), 12 status rows across 6 suites (hardy, lucid, natty, oneiric, precise, upstream): DNE 5, released 3, needs-triage 2, not-affected 2. | https://ubuntu.com/security/CVE-2012-3571 |
| 厂商 | 产品 | 版本 | 原始 CPE |
|---|---|---|---|
| isc | dhcp | 4.1.2 | cpe:2.3:a:isc:dhcp:4.1.2:*:*:*:*:*:*:* |
| isc | dhcp | 4.2.0 | cpe:2.3:a:isc:dhcp:4.2.0:-:*:*:*:*:*:* |
| isc | dhcp | 4.2.0 | cpe:2.3:a:isc:dhcp:4.2.0:a1:*:*:*:*:*:* |
| isc | dhcp | 4.2.0 | cpe:2.3:a:isc:dhcp:4.2.0:a2:*:*:*:*:*:* |
| isc | dhcp | 4.2.0 | cpe:2.3:a:isc:dhcp:4.2.0:b1:*:*:*:*:*:* |
| isc | dhcp | 4.2.0 | cpe:2.3:a:isc:dhcp:4.2.0:b2:*:*:*:*:*:* |
| isc | dhcp | 4.2.0 | cpe:2.3:a:isc:dhcp:4.2.0:p1:*:*:*:*:*:* |
| isc | dhcp | 4.2.0 | cpe:2.3:a:isc:dhcp:4.2.0:rc1:*:*:*:*:*:* |
| isc | dhcp | 4.2.1 | cpe:2.3:a:isc:dhcp:4.2.1:-:*:*:*:*:*:* |
| isc | dhcp | 4.2.1 | cpe:2.3:a:isc:dhcp:4.2.1:b1:*:*:*:*:*:* |
| isc | dhcp | 4.2.1 | cpe:2.3:a:isc:dhcp:4.2.1:rc1:*:*:*:*:*:* |
| isc | dhcp | 4.2.2 | cpe:2.3:a:isc:dhcp:4.2.2:-:*:*:*:*:*:* |
| isc | dhcp | 4.2.2 | cpe:2.3:a:isc:dhcp:4.2.2:b1:*:*:*:*:*:* |
| isc | dhcp | 4.2.2 | cpe:2.3:a:isc:dhcp:4.2.2:rc1:*:*:*:*:*:* |
| isc | dhcp | 4.2.3 | cpe:2.3:a:isc:dhcp:4.2.3:-:*:*:*:*:*:* |
| isc | dhcp | 4.2.3 | cpe:2.3:a:isc:dhcp:4.2.3:p1:*:*:*:*:*:* |
| isc | dhcp | 4.2.3 | cpe:2.3:a:isc:dhcp:4.2.3:p2:*:*:*:*:*:* |
| isc | dhcp | 4.2.4 | cpe:2.3:a:isc:dhcp:4.2.4:*:*:*:*:*:*:* |
| isc | dhcp | 4.1-esv | cpe:2.3:a:isc:dhcp:4.1-esv:-:*:*:*:*:*:* |
| isc | dhcp | 4.1-esv | cpe:2.3:a:isc:dhcp:4.1-esv:r1:*:*:*:*:*:* |
| isc | dhcp | 4.1-esv | cpe:2.3:a:isc:dhcp:4.1-esv:r2:*:*:*:*:*:* |
| isc | dhcp | 4.1-esv | cpe:2.3:a:isc:dhcp:4.1-esv:r3:*:*:*:*:*:* |
| isc | dhcp | 4.1-esv | cpe:2.3:a:isc:dhcp:4.1-esv:r3_b1:*:*:*:*:*:* |
| isc | dhcp | 4.1-esv | cpe:2.3:a:isc:dhcp:4.1-esv:r4:*:*:*:*:*:* |
| isc | dhcp | 4.1-esv | cpe:2.3:a:isc:dhcp:4.1-esv:r5:*:*:*:*:*:* |
| isc | dhcp | 4.1-esv | cpe:2.3:a:isc:dhcp:4.1-esv:r5_b1:*:*:*:*:*:* |
| isc | dhcp | 4.1-esv | cpe:2.3:a:isc:dhcp:4.1-esv:r5_rc1:*:*:*:*:*:* |
| isc | dhcp | 4.1-esv | cpe:2.3:a:isc:dhcp:4.1-esv:r5_rc2:*:*:*:*:*:* |
| canonical | ubuntu_linux | 11.04 | cpe:2.3:o:canonical:ubuntu_linux:11.04:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 11.10 | cpe:2.3:o:canonical:ubuntu_linux:11.10:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 12.04 | cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* |
| debian | debian_linux | 6.0 | cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:* |
| debian | debian_linux | 7.0 | cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* |
| URL | 标签 |
|---|---|
| http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761 | Third Party Advisory |
| http://lists.opensuse.org/opensuse-updates/2012-08/msg00030.html | Mailing List Third Party Advisory |
| http://rhn.redhat.com/errata/RHSA-2012-1140.html | Third Party Advisory |
| http://rhn.redhat.com/errata/RHSA-2012-1141.html | Third Party Advisory |
| http://security.gentoo.org/glsa/glsa-201301-06.xml | Third Party Advisory |
| http://www.debian.org/security/2012/dsa-2516 | Third Party Advisory |
| http://www.debian.org/security/2012/dsa-2519 | Third Party Advisory |
| http://www.mandriva.com/security/advisories?name=MDVSA-2012:115 | Third Party Advisory |
| http://www.mandriva.com/security/advisories?name=MDVSA-2012:116 | Third Party Advisory |
| http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html | Third Party Advisory |
| http://www.securityfocus.com/bid/54665 | Third Party Advisory VDB Entry |
| http://www.ubuntu.com/usn/USN-1519-1 | Third Party Advisory |
| https://kb.isc.org/article/AA-00712 | Vendor Advisory |