CVE-2016-4472The 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…
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It affects libexpat_project libexpat and 3 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 8.1 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Modified
- Record last updated
- Oct 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
libexpat_project libexpat libexpat_project:libexpat | through 2.1.1 | NVD |
canonical ubuntu_linux canonical:ubuntu_linux | 12.04 | NVD |
mcafee policy_auditor mcafee:policy_auditor | before 6.5.1 | NVD |
python python python:python | from 2.7.0 before 2.7.15; from 3.3.0 before 3.3.7; from 3.4.0 before 3.4.7; from 3.5.0 before 3.5.4; from 3.6.0 before 3.6.2 | NVD |
References
- https://www.tenable.com/security/tns-2016-20x-refsource-confirm
- https://bugzilla.redhat.com/show_bug.cgi?id=1344251x-refsource-confirm
- http://www.ubuntu.com/usn/USN-3013-1vendor-advisory, x-refsource-ubuntu
- http://www.securityfocus.com/bid/91528vdb-entry, x-refsource-bid
- https://sourceforge.net/p/expat/code_git/ci/f0bec73b018caa07d3e75ec8dd967f3785d71bdex-refsource-confirm
- https://security.gentoo.org/glsa/201701-21vendor-advisory, x-refsource-gentoo
- https://kc.mcafee.com/corporate/index?page=content&id=SB10365x-refsource-confirm
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.