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Fencer Vulns
medium 6.5

CVE-2016-2073 json

The htmlParseNameComplex function in HTMLparser.c in libxml2 allows attackers to cause a denial of service (out-of-bounds read) via a craft…

published 2016-02-12 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-3178

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

The htmlParseNameComplex function in HTMLparser.c in libxml2 allows attackers to cause a denial of service (out-of-bounds read) via a crafted XML document.

Patch / fix

  • xmlsoft libxml2 2.9.4
  • libxml2 Debian 14, Debian 13, Debian 12 2.9.3+dfsg1-1.1

debian advisories DEBIAN-CVE-2016-2073

  • libxml2 Ubuntu 14.04 LTS 2.9.1+dfsg1-3ubuntu4.8
  • libxml2 Ubuntu 16.04 LTS 2.9.3+dfsg1-1ubuntu0.1

ubuntu advisories UBUNTU-CVE-2016-2073

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libxml2 SLES for SAP 11 SP4, SLES 11 SP4, SLES 11 SP3-TERADATA +6 more 2.7.6-0.44.1
  • libxml2-python SLES for SAP 11 SP4, SLES 11 SP4, SLES 11 SP3-TERADATA +5 more 2.7.6-0.44.4
  • libxml2 SLES for SAP 12 SP1, SLES for SAP 12, SLES 12 SP1 +5 more 2.9.1-24.1
  • python-libxml2 SLES for SAP 12 SP1, SLES for SAP 12, SLES 12 SP1 +3 more 2.9.1-24.1

suse advisories SUSE-SU-2016:1604-1SUSE-SU-2016:1538-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-2073 updated cvss 4.3

libxml2: out-of-bounds read in htmlParseNameComplex()

  • Red Hat Enterprise Linux 5 libxml2 Red Hat Enterprise Linux 6 libxml2, libxml2-python Red Hat Enterprise Linux 7 libxml2, libxml2-python
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.31% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.