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HIGHCVE-2026-32177Published Modified CNA microsoft

CVE-2026-32177: .NET Elevation of Privilege Vulnerability

Heap-based buffer overflow in .NET allows an unauthorized attacker to elevate privileges locally.

Metrics

CVSS v3.1
7.3
Severity
HIGH
Fixed in
4.8.9334.0 and 4.8.4802.0
Affected Products
12

Fix available

4.8.9334.0 and 4.8.4802.08.0.279.0.1610.0.817.12.2017.14.3118.5.3
Patch commits
Affected packages
  • Microsoft / .NET 10.0
    < 10.0.8 (from 10.0.0)
  • Microsoft / .NET 8.0
    < 8.0.27 (from 8.0.0)
  • Microsoft / .NET 9.0
    < 9.0.16 (from 9.0.0)
  • Microsoft / Microsoft .NET Framework 3.5
    < 4.8.9334.0 and 4.8.4802.0 (from 3.5.0)
  • Microsoft / Microsoft .NET Framework 3.5 AND 4.7.2
    < 4.8.9334.0 and 4.8.4802.0 (from 4.7.0)
  • Microsoft / Microsoft .NET Framework 3.5 AND 4.8
    < 4.8.9334.0 and 4.8.4802.0 (from 4.8.0)
  • Microsoft / Microsoft .NET Framework 3.5 AND 4.8.1
    < 4.8.9334.0 and 4.8.4802.0 (from 4.8.1)
  • Microsoft / Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2
    < 4.8.9334.0 and 4.8.4802.0 (from 4.7.0)
  • Microsoft / Microsoft .NET Framework 4.8
    < 4.8.9334.0 and 4.8.4802.0 (from 4.8.0)
  • Microsoft / Microsoft Visual Studio 2022 version 17.12
    < 17.12.20 (from 17.12.0)
  • Microsoft / Microsoft Visual Studio 2022 version 17.14
    < 17.14.31 (from 17.14.0)
  • Microsoft / Microsoft Visual Studio 2026 version 18.5
    < 18.5.3 (from 18.5.0)
CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L/E:U/RL:O/RC:C
References