CVE & CISA-KEV Catalog

CVE-2016-9318

MEDIUMEPSS 85th pctl
5.5
CVSS v3
NVD

Description

libxml2 2.9.4 and earlier, as used in XMLSec 1.2.23 and earlier and other products, does not offer a flag directly indicating that the current document may be read but other files may not be opened, which makes it easier for remote attackers to conduct XML External Entity (XXE) attacks via a crafted document.

How to fix

Remediation Available
libxml2Debian
Fixed in:2.9.10+dfsg-2CVE-2016-9318
Fixed in:2.9.10+dfsg-2CVE-2016-9318
Fixed in:2.9.10+dfsg-2CVE-2016-9318
Fixed in:2.9.10+dfsg-2CVE-2016-9318
libxml2Ubuntu
Fixed in:2.9.1+dfsg1-3ubuntu4.13USN-3739-1
Fixed in:2.9.3+dfsg1-1ubuntu0.6USN-3739-1
Fixed in:2.9.4+dfsg1-6.1ubuntu1.2USN-3739-1
libxml2-utilsUbuntu
Fixed in:2.9.1+dfsg1-3ubuntu4.13USN-3739-1
Fixed in:2.9.3+dfsg1-1ubuntu0.6USN-3739-1
Fixed in:2.9.4+dfsg1-6.1ubuntu1.2USN-3739-1
python-libxml2Ubuntu
Fixed in:2.9.1+dfsg1-3ubuntu4.13USN-3739-1
Fixed in:2.9.3+dfsg1-1ubuntu0.6USN-3739-1
Fixed in:2.9.4+dfsg1-6.1ubuntu1.2USN-3739-1
python3-libxml2Ubuntu
Fixed in:2.9.4+dfsg1-6.1ubuntu1.2USN-3739-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityNone

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

Exploit Intelligence

2.94%probability of exploitation in 30 days
85thpercentile

Elevated risk: more likely to be exploited than 85% of all known CVEs.

References

Related Vulnerabilities

Other CWE-611 (XML External Entity (XXE)) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2024-34102Critical9.8100%KEVFix
CVE-2019-9670Critical9.8100%KEVFix
CVE-2022-28219Critical9.897%--
CVE-2024-22024High8.395%--
CVE-2024-38653High7.592%--
CVE-2017-12629Critical9.892%-Fix
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.