CVE-2021-21088 (GCVE-0-2021-21088)

Vulnerability from cvelistv5 – Published: 2023-09-06 13:08 – Updated: 2024-08-03 18:01
VLAI?
Summary
Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by a Use After Free 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.
Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-416 - Use After Free (CWE-416)
Assigner
References
Impacted products
Vendor Product Version
Adobe Acrobat Reader Affected: 0 , ≤ 2017.011.30188 (semver)
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{
  "containers": {
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T18:01:13.235Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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              "x_transferred"
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            "url": "https://helpx.adobe.com/security/products/acrobat/apsb21-09.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
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          "vendor": "Adobe",
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              "version": "0",
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        }
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            "availabilityRequirement": "NOT_DEFINED",
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            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "confidentialityRequirement": "NOT_DEFINED",
            "environmentalScore": 7.8,
            "environmentalSeverity": "HIGH",
            "exploitCodeMaturity": "NOT_DEFINED",
            "integrityImpact": "HIGH",
            "integrityRequirement": "NOT_DEFINED",
            "modifiedAttackComplexity": "LOW",
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            "modifiedAvailabilityImpact": "HIGH",
            "modifiedConfidentialityImpact": "HIGH",
            "modifiedIntegrityImpact": "HIGH",
            "modifiedPrivilegesRequired": "NONE",
            "modifiedScope": "NOT_DEFINED",
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        "discovery": "EXTERNAL"
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    "dateReserved": "2020-12-18T22:37:17.800Z",
    "dateUpdated": "2024-08-03T18:01:13.235Z",
    "state": "PUBLISHED"
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      "id": "CVE-2021-21088",
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  }
}


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Sightings

Author Source Type Date

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.