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Fencer Intel
critical 9.1

CVE-2016-9180 json

perl-XML-Twig: The option to `expand_external_ents`, documented as controlling external entity expansion in XML::Twig does not work.

published 2016-12-22 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-9996

cvss
9.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.6%
EPSS 3.6% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known

Summary

perl-XML-Twig: The option to `expand_external_ents`, documented as controlling external entity expansion in XML::Twig does not work. External entities are always expanded, regardless of the option's setting.

Patch / fix

  • libxml-twig-perl Debian 14, Debian 13, Debian 12 1:3.50-1.1

debian advisories DEBIAN-CVE-2016-9180

  • perl-XML-Twig SLES 12 SP5, SLES 12 SP3-BCL, SLES 12 SP2-BCL +13 more 3.44-5.3.1
  • perl-XML-Twig SLE Module for Basesystem 15 SP2, SLE Module for Basesystem 15 SP1 3.52-3.3.1

suse advisories SUSE-SU-2020:2173-2SUSE-SU-2020:2173-1SUSE-SU-2020:2172-1

  • perl-XML-Twig openSUSE Tumbleweed 3.52-2.8
  • perl-XML-Twig openSUSE Leap 15.2 3.52-lp152.4.3.1
  • perl-XML-Twig openSUSE Leap 15.1 3.52-lp151.3.3.1

opensuse advisories openSUSE-SU-2024:11164-1openSUSE-SU-2020:1204-1openSUSE-SU-2020:1177-1

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-2016-9180 updated cvss 7.1

perl-XML-Twig: expand_external_ents option fails to work as documented

  • Red Hat Enterprise Linux 5 perl-XML-Twig Red Hat Enterprise Linux 6 perl-XML-Twig Red Hat Enterprise Linux 7 perl-XML-Twig
    affected: no fix planned “Will not fix”

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

3.59% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 9.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
NVD 2.0 6.4 AV:N/AC:L/Au:N/C:P/I:N/A:P

Classification

Weakness
  • CWE-611 Improper Restriction of XML External Entity Reference

References

Sources

Fencer Intel 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.