FKIE_CVE-2026-20940

Vulnerability from fkie_nvd - Published: 2026-01-13 18:16 - Updated: 2026-01-16 15:54
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
Heap-based buffer overflow 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-2026-20940Vendor Advisory
Impacted products
Vendor Product Version
microsoft windows_10_1607 *
microsoft windows_10_1607 *
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_server_2008 -
microsoft windows_server_2008 -
microsoft windows_server_2008 r2
microsoft windows_server_2012 -
microsoft windows_server_2012 r2
microsoft windows_server_2016 *
microsoft windows_server_2019 *
microsoft windows_server_2022 *
To clipboard 

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  "id": "CVE-2026-20940",
  "lastModified": "2026-01-16T15:54:53.543",
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          "attackComplexity": "LOW",
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          "baseScore": 7.8,
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          "confidentialityImpact": "HIGH",
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  • 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.
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  • 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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