CVE-2016-3627

HIGH

libxml2 <2.9.3 - DoS

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2016-3627. PoCs published by Oneton429.

AI-analyzed exploit summary This repository contains a functional proof-of-concept exploit for CVE-2016-3627, which involves an XML External Entity (XXE) vulnerability. The provided XML file demonstrates the vulnerability by using a crafted DOCTYPE declaration to trigger the issue.

Description

The xmlStringGetNodeList function in tree.c in libxml2 2.9.3 and earlier, when used in recovery mode, allows context-dependent attackers to cause a denial of service (infinite recursion, stack consumption, and application crash) via a crafted XML document.

Exploits (1)

nomisec WORKING POC 1 stars
by Oneton429 · poc
https://github.com/Oneton429/CVE-2016-3627

This repository contains a functional proof-of-concept exploit for CVE-2016-3627, which involves an XML External Entity (XXE) vulnerability. The provided XML file demonstrates the vulnerability by using a crafted DOCTYPE declaration to trigger the issue.

Classification
Working Poc 90%
Attack Type
Info Leak
Complexity
Trivial
Reliability
Reliable
Target: libxml2 (versions prior to 2.9.4)
No auth needed
Prerequisites: A system with a vulnerable version of libxml2 · Ability to process the malicious XML file using a tool like xmllint
mistral-large-3 · analyzed Feb 19, 2026 Full analysis →

References (18)

Core 18
Core References
Mailing List, Patch, Third Party Advisory mailing-list x_refsource_fulldisc
http://seclists.org/fulldisclosure/2016/May/10
Mailing List vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-updates/2016-05/msg00127.html
Mailing List vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-updates/2016-05/msg00055.html
Third Party Advisory vendor-advisory x_refsource_redhat
https://access.redhat.com/errata/RHSA-2016:1292
Mailing List, Patch mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/03/21/2
Mailing List vendor-advisory x_refsource_debian
https://www.debian.org/security/2016/dsa-3593
Broken Link, Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1035335
Third Party Advisory vendor-advisory x_refsource_ubuntu
http://www.ubuntu.com/usn/USN-2994-1
Broken Link, Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/84992
Third Party Advisory x_refsource_confirm
https://www.tenable.com/security/tns-2016-18
Third Party Advisory vendor-advisory x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2016-2957.html
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201701-37
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2016/03/21/3

Scores

CVSS v3 7.5
EPSS 0.0703
EPSS Percentile 93.4%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-674
Status published
Products (28)
canonical/ubuntu_linux 12.04
canonical/ubuntu_linux 14.04
canonical/ubuntu_linux 15.10
canonical/ubuntu_linux 16.04
debian/debian_linux 8.0
hp/icewall_federation_agent 3.0
hp/icewall_file_manager 3.0
opensuse/leap 42.1
oracle/solaris 11.3
oracle/vm_server 3.3
... and 18 more
Published May 17, 2016
Tracked Since Feb 18, 2026