FKIE_CVE-2026-3665

Vulnerability from fkie_nvd - Published: 2026-03-07 16:15 - Updated: 2026-04-29 01:00
Severity
3.3 (Low) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
A vulnerability was identified in xlnt-community xlnt up to 1.6.1. The affected element is the function xlnt::detail::xlsx_consumer::read_office_document of the file source/detail/serialization/xlsx_consumer.cpp of the component XLSX File Parser. The manipulation leads to null pointer dereference. The attack must be carried out locally. The exploit is publicly available and might be used.
References
cna@vuldb.comhttps://github.com/oneafter/0128/blob/main/xl4/reproExploit
cna@vuldb.comhttps://github.com/xlnt-community/xlnt/Product
cna@vuldb.comhttps://github.com/xlnt-community/xlnt/issues/140Exploit, Issue Tracking, Vendor Advisory
cna@vuldb.comhttps://vuldb.com/?ctiid.349554Permissions Required, VDB Entry
cna@vuldb.comhttps://vuldb.com/?id.349554Third Party Advisory, VDB Entry
cna@vuldb.comhttps://vuldb.com/?submit.764647Third Party Advisory, VDB Entry
Impacted products
Vendor Product Version
xlnt-community xlnt *
To clipboard 

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      "value": "A vulnerability was identified in xlnt-community xlnt up to 1.6.1. The affected element is the function xlnt::detail::xlsx_consumer::read_office_document of the file source/detail/serialization/xlsx_consumer.cpp of the component XLSX File Parser. The manipulation leads to null pointer dereference. The attack must be carried out locally. The exploit is publicly available and might be used."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad fue identificada en xlnt-community xlnt hasta 1.6.1. El elemento afectado es la funci\u00f3n xlnt::detail::xlsx_consumer::read_office_document del archivo source/detail/serialization/xlsx_consumer.cpp del componente Analizador de Archivos XLSX. La manipulaci\u00f3n conduce a desreferencia de puntero nulo. El ataque debe llevarse a cabo localmente. El exploit est\u00e1 disponible p\u00fablicamente y podr\u00eda ser utilizado."
    }
  ],
  "id": "CVE-2026-3665",
  "lastModified": "2026-04-29T01:00:01.613",
  "metrics": {
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        "baseSeverity": "LOW",
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          "exploitMaturity": "PROOF_OF_CONCEPT",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "NOT_DEFINED",
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          "valueDensity": "NOT_DEFINED",
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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.