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CVE-2021-21036

Status: ModifiedHigh (7.8)—

Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by an Integer Overflow vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

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 (4)

Adobe — AcrobatAdobe — Acrobat DCAdobe — Acrobat ReaderAdobe — Acrobat Reader DC

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2021-21036",
  "cveTags": [],
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
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        "impactScore": 6.4,
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        "obtainAllPrivilege": false,
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          "version": "3.1",
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          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
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          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
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      "affectedData": [
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          "product": "Acrobat Reader",
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              "lessThanOrEqual": "2020.013.20074"
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              "lessThanOrEqual": "2020.001.30018"
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  "published": "2021-02-11T20:15:15.200",
  "references": [
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      "tags": [
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      "source": "psirt@adobe.com"
    },
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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          "value": "CWE-190"
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      "description": [
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          "value": "CWE-190"
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      "value": "Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by an Integer Overflow vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file."
    },
    {
      "lang": "es",
      "value": "Acrobat Reader DC versiones 2020.013.20074 (y anteriores), versiones 2020.001.30018 (y anteriores) y versiones 2017.011.30188 (y anteriores), están afectadas por una vulnerabilidad de desbordamiento de enteros. Un atacante no autenticado podría aprovechar esta vulnerabilidad para alcanzar una ejecución de código arbitraria en el contexto del usuario actual. Una explotación de este problema requiere una interacción del usuario, ya que la víctima debe abrir un archivo malicioso"
    }
  ],
  "lastModified": "2026-06-17T03:34:42.340",
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