FKIE_CVE-2021-34448

Vulnerability from fkie_nvd - Published: 2021-07-16 21:15 - Updated: 2026-06-17 03:55
Severity
6.8 (Medium) - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Summary
Scripting Engine Memory Corruption Vulnerability
References
secure@microsoft.comhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34448Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34448Patch, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-34448US Government Resource
Impacted products
Vendor Product Version
microsoft windows_10_1507 *
microsoft windows_10_1607 *
microsoft windows_10_1809 *
microsoft windows_10_1909 *
microsoft windows_10_2004 *
microsoft windows_10_20h2 *
microsoft windows_10_21h1 *
microsoft windows_7 -
microsoft windows_8.1 -
microsoft windows_rt_8.1 -
microsoft windows_server_2008 r2
microsoft windows_server_2012 -
microsoft windows_server_2012 r2
microsoft windows_server_2016 *
microsoft windows_server_2019 *
To clipboard 

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  "cisaActionDue": "2021-11-17",
  "cisaExploitAdd": "2021-11-03",
  "cisaRequiredAction": "Apply updates per vendor instructions.",
  "cisaVulnerabilityName": "Microsoft Windows Scripting Engine Memory Corruption Vulnerability",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Scripting Engine Memory Corruption Vulnerability"
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de Corrupci\u00f3n de Memoria de Scripting Engine"
    }
  ],
  "id": "CVE-2021-34448",
  "lastModified": "2026-06-17T03:55:53.250",
  "metrics": {
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        "acInsufInfo": false,
        "baseSeverity": "HIGH",
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          "baseScore": 9.3,
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          "integrityImpact": "COMPLETE",
          "vectorString": "AV:N/AC:M/Au:N/C:C/I:C/A:C",
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          "options": [
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              "automatable": "yes"
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            {
              "technicalImpact": "total"
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  "published": "2021-07-16T21:15:09.580",
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  "sourceIdentifier": "secure@microsoft.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
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  ]
}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.