CVE-2016-2099: Use-after-free vulnerability in validators/DTD/DTDScanner.cpp in Apache Xerces C++ 3.1.3 and earlier allows...

Security readout for executives and security teams

CVE-2016-2099 is a memory-safety flaw in Apache Xerces C++ 3.1.3 and earlier. A specially malformed XML document can trigger a use-after-free condition. The public record does not define the exact business impact, so urgency depends on whether affected systems parse XML from untrusted users, partners, or files. Exposure is most likely in applications, services, middleware, or vendor products that use Apache Xerces C++ 3.1.3 or earlier and process XML supplied by untrusted or semi-trusted sources. Prioritize based on exposure. If affected Xerces C++ parses untrusted XML in production, handle in the normal security patch cycle with higher urgency for internet-facing workflows. If usage is internal-only or absent, track as legacy dependency hygiene. Mitigation focus: Identify systems using Apache Xerces C++ 3.1.3 or earlier.; Apply vendor or distribution updates referenced by Apache, Debian, Gentoo, openSUSE, or Oracle guidance.; Review Oracle CPU guidance if Oracle products embed or ship affected Xerces components..

Prepared

Jun 13, 2026, 14:22 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.