CVE & CISA-KEV Catalog

CVE-2016-2099

CRITICALEPSS 93th pctl
9.8
CVSS v3
NVD

Description

Use-after-free vulnerability in validators/DTD/DTDScanner.cpp in Apache Xerces C++ 3.1.3 and earlier allows context-dependent attackers to have unspecified impact via an invalid character in an XML document.

How to fix

Remediation Available
xerces-cDebian
Fixed in:3.1.3+debian-2CVE-2016-2099
Fixed in:3.1.3+debian-2CVE-2016-2099
Fixed in:3.1.3+debian-2CVE-2016-2099
Fixed in:3.1.3+debian-2CVE-2016-2099
libxerces-c-devUbuntu
Fixed in:3.1.3+debian-1ubuntu0.1~esm1USN-4784-1
libxerces-c-docUbuntu
Fixed in:3.1.3+debian-1ubuntu0.1~esm1USN-4784-1
libxerces-c-samplesUbuntu
Fixed in:3.1.3+debian-1ubuntu0.1~esm1USN-4784-1
libxerces-c3.1Ubuntu
Fixed in:3.1.3+debian-1ubuntu0.1~esm1USN-4784-1
libxerces-c3.2Ubuntu
Fixed in:3.2.0+debian-2ubuntu0.1~esm1USN-4784-1
xerces-cUbuntu
Fixed in:3.1.3+debian-1ubuntu0.1~esm1USN-4784-1
Fixed in:3.2.0+debian-2ubuntu0.1~esm1USN-4784-1

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 VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

6.78%probability of exploitation in 30 days
93rdpercentile

High risk: more likely to be exploited than 93% of all known CVEs.

References

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Markdown

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HTML

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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.