CVE-2016-4448

Format string vulnerability in libxml2 before 2.9.4 allows attackers to have unspecified impact via format string specifiers in unknown vectors.

公開： 2016-06-09 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-2016-4448 綜合評估為高風險（76.9/100）：CVSS 技術影響為嚴重級，利用機率偏高（EPSS 7.04%，百分位 93%） 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 +5.49%，被利用關注度持續升高。 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-2016-4448 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 1.55% 7.04% +5.49%
2 2026-05-12 1.88% 1.55% -0.33%
3 2026-05-11 — 1.88% —

完整 EPSS 歷史 （共 41 筆）

CVE-2016-4448 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
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 點擊展開
攻擊向量 (AV:N)
可經網際網路或企業內可路由網段從遠端觸達，攻擊者不必在裝置旁邊。
攻擊複雜度 (AC:L)
前置條件清楚，成功路徑穩定，不必仰賴罕見競態或極端環境。
權限需求 (PR:N)
不必事先登入或提權，匿名工作階段也可能成為跳板。
使用者互動 (UI:N)
不必受害者點連結、放行巨集或安裝軟體，攻擊鏈可自動走完。
作用域 (S:U)
破壞局限在脆弱元件原本的安全權限與信任域之內。
機密性影響 (C:H)
大量讀取、匯出或長期潛伏竊取機敏資料，在實務上成立。
完整性影響 (I:H)
可竄改稽核紀錄、植入後門或大面積偽造業務資料，動搖信任根基。
可用性影響 (A:H)
可造成長時間中斷、關鍵交易無法完成，或伴隨資料毀損導致難以自癒。
 3.9 5.9 [email protected]
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/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:C)
機密性被完全破壞。
完整性影響 (I:C)
完整性被完全破壞。
可用性影響 (A:C)
可用性被完全破壞。
 10.0 10.0 [email protected]

CVE-2016-4448 的弱點列舉

CVE-2016-4448 的 OS 追蹤

vendor priority summary link
debian not yet assigned CVE-2016-4448 not yet assigned priority: Debian including 1 source packages (libxml2), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2016-4448
redhat medium — https://access.redhat.com/security/cve/CVE-2016-4448
suse medium CVE-2016-4448 severity moderate: SUSE including 19 source package names (libxml2-2-2.9.1-24.1, libxml2-2-32bit-2.9.1-24.1, …), 76 product×package rows across 20 product lines (SUSE Liberty Linux 7, SUSE Linux Enterprise Desktop 12, … (20 product lines)): Fixed 76. https://www.suse.com/security/cve/CVE-2016-4448/
ubuntu low CVE-2016-4448 low priority: Ubuntu including 1 source packages (libxml2), 7 status rows across 7 suites (precise, trusty, upstream, wily, xenial, yakkety, zesty): released 4, not-affected 2, ignored 1. https://ubuntu.com/security/CVE-2016-4448

CVE-2016-4448 的影響軟體 / 設定

廠商 產品 版本 原始 CPE
hp icewall_federation_agent 3.0 cpe:2.3:a:hp:icewall_federation_agent:3.0:*:*:*:*:*:*:*
apple watchos <= 2.2.1 cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*
apple mac_os_x < 10.11.6 cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
xmlsoft libxml2 <= 2.9.3 cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*
apple icloud < 5.2.1 cpe:2.3:a:apple:icloud:*:*:*:*:*:*:*:*
apple iphone_os <= 9.3.2 cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 6.0 cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 7.0 cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 6.0 cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_server 7.0 cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.2 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.3 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.4 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.6 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.7 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.2 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.2:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.3 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.4 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.5 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.6 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.7 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.7:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 7.2 cpe:2.3:o:redhat:enterprise_linux_server_tus:7.2:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 7.3 cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 7.6 cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*
redhat enterprise_linux_server_tus 7.7 cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 6.0 cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 7.0 cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
apple itunes <= 12.4.1 cpe:2.3:a:apple:itunes:*:*:*:*:*:*:*:*
slackware slackware_linux 14.0 cpe:2.3:o:slackware:slackware_linux:14.0:*:*:*:*:*:*:*
slackware slackware_linux 14.1 cpe:2.3:o:slackware:slackware_linux:14.1:*:*:*:*:*:*:*
oracle vm_server 3.3 cpe:2.3:o:oracle:vm_server:3.3:*:*:*:*:*:*:*
oracle vm_server 3.4 cpe:2.3:o:oracle:vm_server:3.4:*:*:*:*:*:*:*
apple tvos <= 9.2.1 cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*
tenable log_correlation_engine 4.8.0 cpe:2.3:a:tenable:log_correlation_engine:4.8.0:*:*:*:*:*:*:*
mcafee web_gateway <= 7.5.2.10 cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:*
mcafee web_gateway >= 7.6.0.0, <= 7.6.2.3 cpe:2.3:a:mcafee:web_gateway:*:*:*:*:*:*:*:*
oracle linux 6 cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:*
oracle linux 7 cpe:2.3:o:oracle:linux:7:0:*:*:*:*:*:*

CVE-2016-4448 的參考連結

URL 標籤
http://lists.apple.com/archives/security-announce/2016/Jul/msg00000.html Mailing List Release Notes
http://lists.apple.com/archives/security-announce/2016/Jul/msg00001.html Mailing List Release Notes
http://lists.apple.com/archives/security-announce/2016/Jul/msg00002.html Mailing List Release Notes
http://lists.apple.com/archives/security-announce/2016/Jul/msg00003.html Mailing List Release Notes
http://lists.apple.com/archives/security-announce/2016/Jul/msg00005.html Mailing List Release Notes
http://rhn.redhat.com/errata/RHSA-2016-2957.html Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/05/25/2 Mailing List Third Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html Third Party Advisory
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html Vendor Advisory
http://www.securityfocus.com/bid/90856 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1036348 Third Party Advisory VDB Entry
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.404722 Third Party Advisory
http://xmlsoft.org/news.html Release Notes
https://access.redhat.com/errata/RHSA-2016:1292 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1338700 Issue Tracking Third Party Advisory
https://git.gnome.org/browse/libxml2/commit/?id=4472c3a5a5b516aaf59b89be602fbce52756c3e9 Vendor Advisory
https://git.gnome.org/browse/libxml2/commit/?id=502f6a6d08b08c04b3ddfb1cd21b2f699c1b7f5b Vendor Advisory
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05194709 Third Party Advisory
https://kc.mcafee.com/corporate/index?page=content&id=SB10170 Third Party Advisory
https://support.apple.com/HT206899 Release Notes
https://support.apple.com/HT206901 Release Notes
https://support.apple.com/HT206902 Release Notes
https://support.apple.com/HT206903 Release Notes
https://support.apple.com/HT206904 Release Notes
https://support.apple.com/HT206905 Release Notes
https://www.tenable.com/security/tns-2016-18 Third Party Advisory
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