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Description

Stack-based buffer overflow in .NET and Visual Studio allows an unauthorized attacker to deny service over a network.

PUBLISHED Reserved 2026-03-11 | Published 2026-04-14 | Updated 2026-06-01 | Assigner microsoft




HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

Problem types

CWE-121: Stack-based Buffer Overflow

CWE-20: Improper Input Validation

Product status

10.0.0 (custom) before 10.0.6
affected

8.0.0 (custom) before 8.0.26
affected

9.0.0 (custom) before 9.0.15
affected

17.12.0 (custom) before 17.12.19
affected

17.14.0 (custom) before 17.14.30
affected

18.4.0 (custom) before 18.4.4
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32203 (.NET and Visual Studio Denial of Service Vulnerability) vendor-advisory patch

cve.org (CVE-2026-32203)

nvd.nist.gov (CVE-2026-32203)

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