CVE-2025-25341Public exploitNetwork attack vector

Application crash via entity-node _ref access

Published Dec 26, 2025 · Updated Dec 26, 2025

Denial of service in libxmljs 1.0.11 allows remote attackers to crash applications by supplying a crafted XML document. After parseXml creates entity_ref or entity_decl nodes, reading their internal _ref property directly or during object logging triggers a segmentation fault. Exploitation requires a consuming application to parse attacker-controlled XML and then inspect an affected node; the documented consequence is process termination.

CVSS severity7.5
High
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in libxmljs 1.0.11 allows remote attackers to crash applications by supplying a crafted XML document. After parseXml creates entity_ref or entity_decl nodes, reading their internal _ref property directly or during object logging triggers a segmentation fault. Exploitation requires a consuming application to parse attacker-controlled XML and then inspect an affected node; the documented consequence is process termination.

The record

CVE
CVE-2025-25341
Published
Dec 26, 2025
Updated
Dec 26, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-400, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 26, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 26, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption
T1499.004Application or System Exploitation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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