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CVE-2025-49795 (GCVE-0-2025-49795)

Vulnerability from cvelistv5 – Published: 2025-06-16 15:19 – Updated: 2026-07-07 12:21
VLAI
Title
Libxml: null pointer dereference leads to denial of service (dos)
Summary
A NULL pointer dereference vulnerability was found in libxml2 when processing XPath XML expressions. This flaw allows an attacker to craft a malicious XML input to libxml2, leading to a denial of service.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-16 15:30 UTC
CWE
  • CWE-825 - Expired Pointer Dereference
Assigner
References
Impacted products
Vendor Product Version CPE status
GNOME libxml2 Affected: 2.10.0 , < 2.14.5 (semver)
guessed Create a notification for this product.
Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:2.12.5-7.el10_0 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:10.0
Create a notification for this product.
Red Hat Red Hat JBoss Core Services 2.4.62.SP2     cpe:/a:redhat:jboss_core_services:1
Create a notification for this product.
Red Hat Red Hat Hardened Images Unaffected: 2.15.2-0.3.hum1 , < * (rpm)
    cpe:/a:redhat:hummingbird:1
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
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Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
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Red Hat Red Hat Enterprise Linux 9     cpe:/o:redhat:enterprise_linux:9
Create a notification for this product.
Siemens RUGGEDCOM RST2428P Affected: 0 , < V4.0 (custom)
guessed Create a notification for this product.
Date Public
2025-06-11 00:00
Show details on NVD website
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\"tags\": [\"vdb-entry\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=2372379\", \"name\": \"RHBZ#2372379\", \"tags\": [\"issue-tracking\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://gitlab.gnome.org/GNOME/libxml2/-/issues/932\"}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"Mitigation is either unavailable or does not meet Red Hat Product Security standards for usability, deployment, applicability, or stability.\"}], \"x_generator\": {\"engine\": \"cvelib 1.8.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A NULL pointer dereference vulnerability was found in libxml2 when processing XPath XML expressions. This flaw allows an attacker to craft a malicious XML input to libxml2, leading to a denial of service.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-825\", \"description\": \"Expired Pointer Dereference\"}]}], \"providerMetadata\": {\"orgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"shortName\": \"redhat\", \"dateUpdated\": \"2026-07-07T12:21:36.169Z\"}, \"x_redhatCweChain\": \"CWE-825: Expired Pointer Dereference\"}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-49795\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-07-07T12:21:36.169Z\", \"dateReserved\": \"2025-06-10T22:17:05.286Z\", \"assignerOrgId\": \"53f830b8-0a3f-465b-8143-3b8a9948e749\", \"datePublished\": \"2025-06-16T15:19:29.871Z\", \"assignerShortName\": \"redhat\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.