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CVE-2023-35958

Status: ModifiedHigh (7.8)—

Multiple heap-based buffer overflow vulnerabilities exist in the fstReaderIterBlocks2 VCDATA parsing functionality of GTKWave 3.3.115. A specially-crafted .fst file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the copy function `fstFread`.

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)

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2023-35958",
  "cveTags": [],
  "metrics": {
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          "options": [
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              "exploitation": "none"
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            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
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          "version": "2.0.3",
          "timestamp": "2024-01-08T16:47:20.326790Z"
        }
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    "cvssMetricV31": [
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  "vulnStatus": "Modified",
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    {
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      "value": "Multiple heap-based buffer overflow vulnerabilities exist in the fstReaderIterBlocks2 VCDATA parsing functionality of GTKWave 3.3.115. A specially-crafted .fst file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger these vulnerabilities.This vulnerability concerns the copy function `fstFread`."
    },
    {
      "lang": "es",
      "value": "Existen múltiples vulnerabilidades de desbordamiento de búfer de almacenamiento dinámico en la funcionalidad de análisis VCDATA fstReaderIterBlocks2 de GTKWave 3.3.115. Un archivo .fst especialmente manipulado puede provocar la ejecución de código arbitrario. Una víctima necesitaría abrir un archivo malicioso para activar estas vulnerabilidades. Esta vulnerabilidad se refiere a la función de copia \"fstFread\"."
    }
  ],
  "lastModified": "2026-06-17T06:05:32.950",
  "configurations": [
    {
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        {
          "negate": false,
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