CVE-2011-2748

The server in ISC DHCP 3.x and 4.x before 4.2.2, 3.1-ESV before 3.1-ESV-R3, and 4.1-ESV before 4.1-ESV-R3 allows remote attackers to cause a denial of service (daemon exit) via a crafted DHCP packet.

公開： 2011-08-15 最後更新： 2026-06-16 指派方： [email protected] 來源： [email protected]
NVD 狀態：Modified，CVE 狀態： published
檢視： NVD, CVE.org, EUVD

CVE-2011-2748 綜合評估為中等風險（60.6/100）：CVSS 技術影響為高級，利用機率偏高（EPSS 38.77%，百分位 98%） EPSS 顯示該漏洞近期被利用的可能性處於高位。 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。

CVE-2011-2748 的 EPSS（利用預測評分）

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 87.79% 38.77% -49.01%
2 2025-08-12 87.88% 87.79% -0.09%
3 2025-04-15 — 87.88% —

完整 EPSS 歷史 （共 15 筆）

CVE-2011-2748 的 CVSS 指標

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
7.8 2.0 HIGH
AV:N/AC:L/Au:N/C:N/I:N/A:C 點擊展開
存取路徑 (AV:N)
只要路由可達，即可從遠端發動利用。
存取複雜度 (AC:L)
步驟短、路徑清楚，重現成本低。
認證 (AU:N)
全程無需有效身分。
機密性影響 (C:N)
對機密性無影響。
完整性影響 (I:N)
對完整性無影響。
可用性影響 (A:C)
可用性被完全破壞。
 10.0 6.9 [email protected]

CVE-2011-2748 的弱點列舉

CVE-2011-2748 的 OS 追蹤

vendor priority summary link
debian not yet assigned CVE-2011-2748 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-2011-2748
gentoo normal CVE-2011-2748: 1 GLSA(s) (201301-06), 1 atom(s) (net-misc/dhcp); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2011-2748
redhat medium — https://access.redhat.com/security/cve/CVE-2011-2748
suse high CVE-2011-2748 severity important: SUSE including 60 source package names (dhcp-3.1.3.ESV-0.13.1, dhcp-4.2.3.P2-0.7.2, …), 92 product×package rows across 34 product lines (SUSE Linux Enterprise Desktop 12, SUSE Linux Enterprise Desktop 12 SP1, … (34 product lines)): Fixed 92. https://www.suse.com/security/cve/CVE-2011-2748/
ubuntu medium CVE-2011-2748 medium priority: Ubuntu including 2 source packages (dhcp3, isc-dhcp), 10 status rows across 5 suites (hardy, lucid, maverick, natty, upstream): released 6, DNE 4. https://ubuntu.com/security/CVE-2011-2748

CVE-2011-2748 的影響軟體 / 設定

廠商 產品 版本 原始 CPE
isc dhcp 3.0 cpe:2.3:a:isc:dhcp:3.0:*:*:*:*:*:*:*
isc dhcp 3.0.1 cpe:2.3:a:isc:dhcp:3.0.1:-:*:*:*:*:*:*
isc dhcp 3.0.1 cpe:2.3:a:isc:dhcp:3.0.1:rc1:*:*:*:*:*:*
isc dhcp 3.0.1 cpe:2.3:a:isc:dhcp:3.0.1:rc10:*:*:*:*:*:*
isc dhcp 3.0.1 cpe:2.3:a:isc:dhcp:3.0.1:rc11:*:*:*:*:*:*
isc dhcp 3.0.1 cpe:2.3:a:isc:dhcp:3.0.1:rc12:*:*:*:*:*:*
isc dhcp 3.0.1 cpe:2.3:a:isc:dhcp:3.0.1:rc13:*:*:*:*:*:*
isc dhcp 3.0.1 cpe:2.3:a:isc:dhcp:3.0.1:rc14:*:*:*:*:*:*
isc dhcp 3.0.1 cpe:2.3:a:isc:dhcp:3.0.1:rc2:*:*:*:*:*:*
isc dhcp 3.0.1 cpe:2.3:a:isc:dhcp:3.0.1:rc5:*:*:*:*:*:*
isc dhcp 3.0.1 cpe:2.3:a:isc:dhcp:3.0.1:rc6:*:*:*:*:*:*
isc dhcp 3.0.1 cpe:2.3:a:isc:dhcp:3.0.1:rc7:*:*:*:*:*:*
isc dhcp 3.0.1 cpe:2.3:a:isc:dhcp:3.0.1:rc8:*:*:*:*:*:*
isc dhcp 3.0.1 cpe:2.3:a:isc:dhcp:3.0.1:rc9:*:*:*:*:*:*
isc dhcp 3.0.2 cpe:2.3:a:isc:dhcp:3.0.2:-:*:*:*:*:*:*
isc dhcp 3.0.2 cpe:2.3:a:isc:dhcp:3.0.2:b1:*:*:*:*:*:*
isc dhcp 3.0.2 cpe:2.3:a:isc:dhcp:3.0.2:rc1:*:*:*:*:*:*
isc dhcp 3.0.2 cpe:2.3:a:isc:dhcp:3.0.2:rc2:*:*:*:*:*:*
isc dhcp 3.0.2 cpe:2.3:a:isc:dhcp:3.0.2:rc3:*:*:*:*:*:*
isc dhcp 3.0.3 cpe:2.3:a:isc:dhcp:3.0.3:b1:*:*:*:*:*:*
isc dhcp 3.0.3 cpe:2.3:a:isc:dhcp:3.0.3:b2:*:*:*:*:*:*
isc dhcp 3.0.3 cpe:2.3:a:isc:dhcp:3.0.3:b3:*:*:*:*:*:*
isc dhcp 3.0.4 cpe:2.3:a:isc:dhcp:3.0.4:-:*:*:*:*:*:*
isc dhcp 3.0.4 cpe:2.3:a:isc:dhcp:3.0.4:b1:*:*:*:*:*:*
isc dhcp 3.0.4 cpe:2.3:a:isc:dhcp:3.0.4:b2:*:*:*:*:*:*
isc dhcp 3.0.4 cpe:2.3:a:isc:dhcp:3.0.4:b3:*:*:*:*:*:*
isc dhcp 3.0.4 cpe:2.3:a:isc:dhcp:3.0.4:rc1:*:*:*:*:*:*
isc dhcp 3.0.5 cpe:2.3:a:isc:dhcp:3.0.5:-:*:*:*:*:*:*
isc dhcp 3.0.5 cpe:2.3:a:isc:dhcp:3.0.5:rc1:*:*:*:*:*:*
isc dhcp 3.0.6 cpe:2.3:a:isc:dhcp:3.0.6:rc1:*:*:*:*:*:*
isc dhcp 3.1 cpe:2.3:a:isc:dhcp:3.1:*:*:*:*:*:*:*
isc dhcp 3.1-esv cpe:2.3:a:isc:dhcp:3.1-esv:*:*:*:*:*:*:*
isc dhcp 3.1.0 cpe:2.3:a:isc:dhcp:3.1.0:-:*:*:*:*:*:*
isc dhcp 3.1.0 cpe:2.3:a:isc:dhcp:3.1.0:a1:*:*:*:*:*:*
isc dhcp 3.1.0 cpe:2.3:a:isc:dhcp:3.1.0:a2:*:*:*:*:*:*
isc dhcp 3.1.0 cpe:2.3:a:isc:dhcp:3.1.0:a3:*:*:*:*:*:*
isc dhcp 3.1.0 cpe:2.3:a:isc:dhcp:3.1.0:b1:*:*:*:*:*:*
isc dhcp 3.1.0 cpe:2.3:a:isc:dhcp:3.1.0:b2:*:*:*:*:*:*
isc dhcp 3.1.0 cpe:2.3:a:isc:dhcp:3.1.0:rc1:*:*:*:*:*:*
isc dhcp 3.1.1 cpe:2.3:a:isc:dhcp:3.1.1:-:*:*:*:*:*:*
isc dhcp 3.1.1 cpe:2.3:a:isc:dhcp:3.1.1:rc1:*:*:*:*:*:*
isc dhcp 3.1.1 cpe:2.3:a:isc:dhcp:3.1.1:rc2:*:*:*:*:*:*
isc dhcp 3.1.2 cpe:2.3:a:isc:dhcp:3.1.2:-:*:*:*:*:*:*
isc dhcp 3.1.2 cpe:2.3:a:isc:dhcp:3.1.2:b1:*:*:*:*:*:*
isc dhcp 3.1.2 cpe:2.3:a:isc:dhcp:3.1.2:rc1:*:*:*:*:*:*
isc dhcp 3.1.3 cpe:2.3:a:isc:dhcp:3.1.3:-:*:*:*:*:*:*
isc dhcp 3.1.3 cpe:2.3:a:isc:dhcp:3.1.3:b1:*:*:*:*:*:*
isc dhcp 3.1.3 cpe:2.3:a:isc:dhcp:3.1.3:rc1:*:*:*:*:*:*
isc dhcp 4.0 cpe:2.3:a:isc:dhcp:4.0:*:*:*:*:*:*:*
isc dhcp 4.0-esv cpe:2.3:a:isc:dhcp:4.0-esv:*:*:*:*:*:*:*
isc dhcp 4.0.0 cpe:2.3:a:isc:dhcp:4.0.0:*:*:*:*:*:*:*
isc dhcp 4.0.1 cpe:2.3:a:isc:dhcp:4.0.1:-:*:*:*:*:*:*
isc dhcp 4.0.1 cpe:2.3:a:isc:dhcp:4.0.1:b1:*:*:*:*:*:*
isc dhcp 4.0.1 cpe:2.3:a:isc:dhcp:4.0.1:rc1:*:*:*:*:*:*
isc dhcp 4.0.2 cpe:2.3:a:isc:dhcp:4.0.2:-:*:*:*:*:*:*
isc dhcp 4.0.2 cpe:2.3:a:isc:dhcp:4.0.2:b1:*:*:*:*:*:*
isc dhcp 4.0.2 cpe:2.3:a:isc:dhcp:4.0.2:b2:*:*:*:*:*:*
isc dhcp 4.0.2 cpe:2.3:a:isc:dhcp:4.0.2:b3:*:*:*:*:*:*
isc dhcp 4.0.2 cpe:2.3:a:isc:dhcp:4.0.2:rc1:*:*:*:*:*:*
isc dhcp 4.0.3 cpe:2.3:a:isc:dhcp:4.0.3:-:*:*:*:*:*:*
isc dhcp 4.0.3 cpe:2.3:a:isc:dhcp:4.0.3:b1:*:*:*:*:*:*
isc dhcp 4.0.3 cpe:2.3:a:isc:dhcp:4.0.3:rc1:*:*:*:*:*:*
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:rc1:*:*:*:*:*:*
isc dhcp 4.1.0 cpe:2.3:a:isc:dhcp:4.1.0:*:*:*:*:*:*:*
isc dhcp 4.1.1 cpe:2.3:a:isc:dhcp:4.1.1:-:*:*:*:*:*:*
isc dhcp 4.1.1 cpe:2.3:a:isc:dhcp:4.1.1:b1:*:*:*:*:*:*
isc dhcp 4.1.1 cpe:2.3:a:isc:dhcp:4.1.1:b2:*:*:*:*:*:*
isc dhcp 4.1.1 cpe:2.3:a:isc:dhcp:4.1.1:b3:*:*:*:*:*:*
isc dhcp 4.1.1 cpe:2.3:a:isc:dhcp:4.1.1:rc1:*:*:*:*:*:*
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:*:*:*:*:*:*

CVE-2011-2748 的參考連結

URL 標籤
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761 Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2011-September/065176.html Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2011-09/msg00014.html Mailing List Third Party Advisory
http://redmine.pfsense.org/issues/1888 Third Party Advisory
http://secunia.com/advisories/45582 Third Party Advisory
http://secunia.com/advisories/45595 Third Party Advisory
http://secunia.com/advisories/45629 Third Party Advisory
http://secunia.com/advisories/45639 Third Party Advisory
http://secunia.com/advisories/45817 Third Party Advisory
http://secunia.com/advisories/45918 Third Party Advisory
http://secunia.com/advisories/46780 Third Party Advisory
http://security.gentoo.org/glsa/glsa-201301-06.xml Third Party Advisory
http://securitytracker.com/id?1025918 Third Party Advisory VDB Entry
http://www.debian.org/security/2011/dsa-2292 Third Party Advisory
http://www.isc.org/files/release-notes/DHCP%203.1-ESV-R3_0.html Vendor Advisory
http://www.isc.org/files/release-notes/DHCP%204.1-ESV-R3.html Vendor Advisory
http://www.isc.org/files/release-notes/DHCP%204.2.2_0.html Vendor Advisory
http://www.isc.org/software/dhcp/advisories/cve-2011-2748 Patch Vendor Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2011:128 Third Party Advisory
http://www.redhat.com/support/errata/RHSA-2011-1160.html Third Party Advisory
http://www.securityfocus.com/bid/49120 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-1190-1 Third Party Advisory
https://bugzilla.redhat.com/attachment.cgi?id=517665&action=diff Issue Tracking Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=729382 Issue Tracking Third Party Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/69139 Third Party Advisory VDB Entry
https://hermes.opensuse.org/messages/11695711 Third Party Advisory
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