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Findings

CVE-2022-25313

In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large nesting depth in the DTD element.

Published Feb 18, 2022 · updated Oct 14, 2026 · libexpat project libexpat

In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large nesting depth in the DTD element.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Feb 18, 2022 · NIST NVD

    Detected

    In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large nesting depth in the DTD element.

  2. Oct 14, 2026 · NIST NVD

    Updated

    In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large nesting depth in the DTD element.

Affected

  • cpe debian/debian linux10.0
  • cpe debian/debian linux11.0
  • cpe fedoraproject/fedora34
  • cpe fedoraproject/fedora35
  • cpe libexpat project/libexpatversion unspecified
  • cpe oracle/http server12.2.1.3.0
  • cpe oracle/http server12.2.1.4.0
  • cpe oracle/zfs storage appliance kit8.8
  • cpe siemens/sinema remote connect serverversion unspecified

Sources

  • CVE.orgVulnerability recordCVE-2022-25313

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2022-25313

    30-day exploitation probability 3.3%

    first.org
  • NIST NVDVulnerability recordCVE-2022-25313

    In Expat (aka libexpat) before 2.4.5, an attacker can trigger stack exhaustion in build_model via a large nesting depth in the DTD element.

    nvd.nist.gov

References