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Case File

CVE-2013-0339

MEDIUM · CVSS 6.8 EPSS 3.61%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2014-01-21 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 6.8. It may be remotely exploitable. It may lead to a denial-of-service condition.

CVE
CVE-2013-0339
Severity
MEDIUM
CVSS
6.8
EPSS
3.61%

Original NVD Description

libxml2 through 2.9.1 does not properly handle external entities expansion unless an application developer uses the xmlSAX2ResolveEntity or xmlSetExternalEntityLoader function, which allows remote attackers to cause a denial of service (resource consumption), send HTTP requests to intranet servers, or read arbitrary files via a crafted XML document, aka an XML External Entity (XXE) issue. NOTE: it could be argued that because libxml2 already provides the ability to disable external entity expansion, the responsibility for resolving this issue lies with application developers; according to this argument, this entry should be REJECTed and each affected application would need its own CVE.