What is CVE-2016-4483?

CVE-2016-4483 is a high-severity vulnerability in Oracle Solaris, classified under Deserialization of Untrusted Data. CVSS score: 7.5/10. Published 2017-04-11.

How severe is CVE-2016-4483?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2016-4483 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Deserialization in Oracle Solaris

CVE-2016-4483

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.

Vulnerability class: Insecure Deserialization

Published 2017-04-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.062 (93.2th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.062 · newest: 0.062 · change: 0.000

Affected products

Oracle Solaris — versions 11.3
Xmlsoft Libxml2
Debian Linux — versions 8.0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

www.openwall.com/lists/oss-security/2016/05/03/8 (mailing-list, Exploit, Mailing List, Third Party Advisory)
www.openwall.com/lists/oss-security/2016/05/04/7 (mailing-list, Mailing List, Third Party Advisory)
git.gnome.org/browse/libxml2/commit/ (Patch, Third Party Advisory)
www.openwall.com/lists/oss-security/2016/06/07/5 (mailing-list, Patch, Mailing List, Third Party Advisory)
www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html (Third Party Advisory)
www.securityfocus.com/bid/90013 (VDB Entry, Third Party Advisory, vdb-entry)
www.tenable.com/security/tns-2016-18 (Third Party Advisory)
www.debian.org/security/2016/dsa-3593 (vendor-advisory, Third Party Advisory)
www.openwall.com/lists/oss-security/2016/06/07/4 (mailing-list, Patch, Mailing List, Third Party Advisory)
rhn.redhat.com/errata/RHSA-2016-2957.html (vendor-advisory, Third Party Advisory)

Frequently asked questions

What is CVE-2016-4483?: CVE-2016-4483 is a high-severity vulnerability in Oracle Solaris, classified under Deserialization of Untrusted Data. CVSS score: 7.5/10. Published 2017-04-11.
How severe is CVE-2016-4483?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2016-4483 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.