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CVE-2026-3665

Status: AnalyzedLow (1.9)—

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.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Xlnt-community — Xlnt

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2026-3665",
  "cveTags": [],
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          "timestamp": "2026-03-11T16:14:26.493656Z"
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          "valueDensity": "NOT_DEFINED",
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          "modifiedAttackComplexity": "NOT_DEFINED",
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          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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      "tags": [
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      "source": "cna@vuldb.com"
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        "VDB Entry"
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      "source": "cna@vuldb.com",
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          "value": "CWE-404"
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          "value": "CWE-476"
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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."
    },
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      "lang": "es",
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    }
  ],
  "lastModified": "2026-06-17T10:43:56.653",
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