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CVE-2023-34292

Status: AnalyzedHigh (7.8)—

Ashlar-Vellum Cobalt Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Cobalt. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of X_B or X_T files. The issue results from the lack of proper validation of user-supplied data, which can result in a write before the start of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. . Was ZDI-CAN-18552.

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)

Ashlar — Cobalt

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2023-34292",
  "cveTags": [],
  "metrics": {
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          "id": "CVE-2023-34292",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
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            {
              "technicalImpact": "total"
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          "version": "2.0.3",
          "timestamp": "2024-05-22T17:21:33.126215Z"
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          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
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          "confidentialityImpact": "HIGH"
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  "affected": [
    {
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      "affectedData": [
        {
          "vendor": "Ashlar-Vellum",
          "product": "Cobalt",
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              "version": "Ashlar-Vellum Cobalt 12 beta build 1204.49"
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  "published": "2024-05-03T02:15:29.470",
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      "description": [
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          "value": "CWE-787"
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    {
      "lang": "en",
      "value": "Ashlar-Vellum Cobalt Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ashlar-Vellum Cobalt. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.\n\nThe specific flaw exists within the parsing of X_B or X_T files. The issue results from the lack of proper validation of user-supplied data, which can result in a write before the start of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.\n. Was ZDI-CAN-18552."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de ejecución remota de código de escritura fuera de los límites de Ashlar-Vellum Cobalt. Esta vulnerabilidad permite a atacantes remotos ejecutar código arbitrario en las instalaciones afectadas de Ashlar-Vellum Cobalt. Se requiere la interacción del usuario para aprovechar esta vulnerabilidad, ya que el objetivo debe visitar una página maliciosa o abrir un archivo malicioso. La falla específica existe en el análisis de archivos X_B o X_T. El problema se debe a la falta de validación adecuada de los datos proporcionados por el usuario, lo que puede provocar una escritura antes del inicio de un búfer asignado. Un atacante puede aprovechar esta vulnerabilidad para ejecutar código en el contexto del proceso actual. Era ZDI-CAN-18552."
    }
  ],
  "lastModified": "2026-06-17T06:03:19.263",
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