CVE-2015-3451

Xml Libxml vulnerability

CVSS

5.0

EPSS

4.0%

EPSS pct

89th

Exploited

No known

The _clone function in XML::LibXML before 2.0119 does not properly set the expand_entities option, which allows remote attackers to conduct XML external entity (XXE) attacks via crafted XML data to the (1) new or (2) load_xml function.

Affected vendor

Xml Libxml Project

Affected product

Xml Libxml

CVSS vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

Weakness type (CWE)

CWE-611 — XML External Entity (XXE) Reference

Published

2015-05-12

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to partial impact to confidentiality.

Its EPSS score of 4.0% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2015-3451

Confirm whether Xml Libxml Project Xml Libxml is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2015-3451.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2015-3451

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2015-3451 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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