The overflow protection in Expat is removed by compilers with certain optimization settings, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via crafted XML data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1283 and CVE-2015-2716.
結論預警: CVE-2016-4472 綜合評估為高風險(66.3/100):CVSS 技術影響為高級,利用機率偏高(EPSS 12.37%,百分位 96%) 核心證據: EPSS 顯示該漏洞近期被利用的可能性處於高位。 強制指令: 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。
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 | 2026-07-11 | 11.95% | 12.37% | +0.42% |
| 2 | 2026-06-15 | 2.27% | 11.95% | +9.68% |
| 3 | 2026-03-04 | — | 2.27% | — |
完整 EPSS 歷史 (共 49 筆)
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 |
|---|---|---|---|---|---|---|
| 8.1 | 3.1 | HIGH |
|
2.2 | 5.9 | [email protected] |
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2016-4472 not yet assigned priority: Debian including 2 source packages (expat, libxmltok), 7 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5, open 2. | https://security-tracker.debian.org/tracker/CVE-2016-4472 |
gentoo
|
normal | CVE-2016-4472: 1 GLSA(s) (201701-21), 1 atom(s) (dev-libs/expat); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2016-4472 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2016-4472 |
suse
|
medium | CVE-2016-4472 severity moderate: SUSE including 284 source package names (amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, amazon/suse-sles-15-sp1-chost-byos-v20220127-hvm-ssd-x86_64, …), 505 product×package rows across 82 product lines (HPE Helion OpenStack 8, Image SLES12-SP5-Azure-BYOS, … (82 product lines)): Fixed 315, Known Affected 157, Known Not Affected 33. | https://www.suse.com/security/cve/CVE-2016-4472/ |
ubuntu
|
medium | CVE-2016-4472 medium priority: Ubuntu including 26 source packages (audacity, ayttm, …), 615 status rows across 24 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, precise, questing, trusty, upstream, wily, xenial, yakkety, zesty): not-affected 209, DNE 202, ignored 145, needed 29, needs-triage 22, released 8. | https://ubuntu.com/security/CVE-2016-4472 |
| 廠商 | 產品 | 版本 | 原始 CPE |
|---|---|---|---|
| libexpat_project | libexpat | <= 2.1.1 | cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:* |
| canonical | ubuntu_linux | 12.04 | cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:* |
| mcafee | policy_auditor | < 6.5.1 | cpe:2.3:a:mcafee:policy_auditor:*:*:*:*:*:*:*:* |
| python | python | >= 2.7.0, < 2.7.15 | cpe:2.3:a:python:python:*:*:*:*:*:*:*:* |
| python | python | >= 3.3.0, < 3.3.7 | cpe:2.3:a:python:python:*:*:*:*:*:*:*:* |
| python | python | >= 3.4.0, < 3.4.7 | cpe:2.3:a:python:python:*:*:*:*:*:*:*:* |
| python | python | >= 3.5.0, < 3.5.4 | cpe:2.3:a:python:python:*:*:*:*:*:*:*:* |
| python | python | >= 3.6.0, < 3.6.2 | cpe:2.3:a:python:python:*:*:*:*:*:*:*:* |
| URL | 標籤 |
|---|---|
| http://www.securityfocus.com/bid/91528 | Third Party Advisory VDB Entry |
| http://www.ubuntu.com/usn/USN-3013-1 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1344251 | Issue Tracking Patch Third Party Advisory |
| https://kc.mcafee.com/corporate/index?page=content&id=SB10365 | Third Party Advisory |
| https://security.gentoo.org/glsa/201701-21 | Third Party Advisory |
| https://sourceforge.net/p/expat/code_git/ci/f0bec73b018caa07d3e75ec8dd967f3785d71bde | Patch Third Party Advisory |
| https://www.tenable.com/security/tns-2016-20 | Third Party Advisory |