The xmlBufAttrSerializeTxtContent function in xmlsave.c in libxml2 allows context-dependent attackers to cause a denial of service (out-of-bounds read and application crash) via a non-UTF-8 attribute value, related to serialization. NOTE: this vulnerability may be a duplicate of CVE-2016-3627.
CVE-2016-4483
HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2022-05-13. NVD baseline CVSS 7.5; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 6%CVSS: 7.5Exploit: NoneExposed: 0
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 92.6%
- KEV
- Not listed
Published
April 11, 2017
Last Modified
May 13, 2026
References (28)
- cve@mitrehttp://rhn.redhat.com/errata/RHSA-2016-2957.html
- cve@mitrehttp://www.debian.org/security/2016/dsa-3593
- cve@mitrehttp://www.openwall.com/lists/oss-security/2016/05/03/8
- cve@mitrehttp://www.openwall.com/lists/oss-security/2016/05/04/7
- cve@mitrehttp://www.openwall.com/lists/oss-security/2016/06/07/4
- cve@mitrehttp://www.openwall.com/lists/oss-security/2016/06/07/5
- cve@mitrehttp://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
- cve@mitrehttp://www.securityfocus.com/bid/90013
- cve@mitrehttp://www.securitytracker.com/id/1036348
- cve@mitrehttps://git.gnome.org/browse/libxml2/commit/?id=c97750d11bb8b6f3303e7131fe526a61ac65bcfd
- cve@mitrehttps://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
- cve@mitrehttps://security.gentoo.org/glsa/201701-37
- cve@mitrehttps://www.tenable.com/security/tns-2016-18
- af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2016-2957.html
All Vendor Advisories
(2)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Frequently asked(5)
What is CVE-2016-4483?
CVE-2016-4483 is a high vulnerability published on April 11, 2017. The xmlBufAttrSerializeTxtContent function in xmlsave.c in libxml2 allows context-dependent attackers to cause a denial of service (out-of-bounds read and application crash) via a non-UTF-8 attribute value, related to serialization. NOTE: this vulnerability may be a duplicate of CVE-2016-3627.
When was CVE-2016-4483 disclosed?
CVE-2016-4483 was first published in the National Vulnerability Database on April 11, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2016-4483 actively exploited?
CVE-2016-4483 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 92.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2016-4483?
CVE-2016-4483 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2016-4483?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-4483, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
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