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Description

Deserialization of untrusted data in .NET allows an unauthorized attacker to execute code locally.

PUBLISHED Reserved 2026-06-05 | Published 2026-07-14 | Updated 2026-07-14 | Assigner microsoft




HIGH: 7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Problem types

CWE-502: Deserialization of Untrusted Data

Product status

8.0.0 (custom) before 8.0.29
affected

9.0.0 (custom) before 9.0.18
affected

17.12.0 (custom) before 17.12.22
affected

17.14.0 (custom) before 17.14.36
affected

18.0 (custom) before 18.7.4
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50649 (.NET Remote Code Execution Vulnerability) vendor-advisory patch

cve.org (CVE-2026-50649)

nvd.nist.gov (CVE-2026-50649)

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