FKIE_CVE-2026-34337

Vulnerability from fkie_nvd - Published: 2026-05-12 18:17 - Updated: 2026-05-14 15:16
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.0 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally.
References
secure@microsoft.comhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34337Vendor Advisory
Impacted products
Vendor Product Version
microsoft windows_10_1809 *
microsoft windows_10_1809 *
microsoft windows_10_21h2 *
microsoft windows_10_21h2 *
microsoft windows_10_21h2 *
microsoft windows_10_22h2 *
microsoft windows_10_22h2 *
microsoft windows_10_22h2 *
microsoft windows_11_23h2 *
microsoft windows_11_23h2 *
microsoft windows_11_24h2 *
microsoft windows_11_24h2 *
microsoft windows_11_25h2 *
microsoft windows_11_25h2 *
microsoft windows_11_26h1 *
microsoft windows_11_26h1 *
microsoft windows_server_2019 *
microsoft windows_server_2022 *
microsoft windows_server_2022_23h2 *
microsoft windows_server_2025 *
To clipboard 

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      "value": "Use after free in Windows Cloud Files Mini Filter Driver allows an authorized attacker to elevate privileges locally."
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  "id": "CVE-2026-34337",
  "lastModified": "2026-05-14T15:16:39.907",
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Sightings

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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.
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  • 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.



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