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Vulnerability record · CVE-2016-4483 · published 11 April 2017

CVE-2016-4483: Xmlsoft libxml2 deserialization of untrusted data vulnerability

Xmlsoft · Libxml2

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.

7.5 CVSS 3.1 High EPSS 6.2% · top 6.8% CWE-502 · Deserialization of untrusted data
7.5CVSS 3.1 base score, v2 5.0
6.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
28References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://rhn.redhat.com/errata/RHSA-2016-2957.html Third Party Advisory
http://www.debian.org/security/2016/dsa-3593 Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/05/03/8 ExploitMailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/05/04/7 Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/06/07/4 Mailing ListPatchThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/06/07/5 Mailing ListPatchThird Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html Third Party Advisory
http://www.securityfocus.com/bid/90013 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1036348 Third Party AdvisoryVDB Entry
https://git.gnome.org/browse/libxml2/commit/?id=c97750d11bb8b6f3303e7131fe526a61ac65bcfd PatchThird Party Advisory
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.ap
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.ap
https://security.gentoo.org/glsa/201701-37 Third Party Advisory
https://www.tenable.com/security/tns-2016-18 Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2957.html Third Party Advisory
http://www.debian.org/security/2016/dsa-3593 Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/05/03/8 ExploitMailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/05/04/7 Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/06/07/4 Mailing ListPatchThird Party Advisory
http://www.openwall.com/lists/oss-security/2016/06/07/5 Mailing ListPatchThird Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html Third Party Advisory
http://www.securityfocus.com/bid/90013 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1036348 Third Party AdvisoryVDB Entry
https://git.gnome.org/browse/libxml2/commit/?id=c97750d11bb8b6f3303e7131fe526a61ac65bcfd PatchThird Party Advisory
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.ap
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.ap
https://security.gentoo.org/glsa/201701-37 Third Party Advisory
https://www.tenable.com/security/tns-2016-18 Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2016-4483), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.