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Description

Deserialization of untrusted data in Microsoft Bing allows an unauthorized attacker to execute code over a network.

PUBLISHED Reserved 2026-03-24 | Published 2026-04-23 | Updated 2026-04-28 | Assigner microsoft




CRITICAL: 10.0CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C

Problem types

CWE-502: Deserialization of Untrusted Data

Product status

-
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33819 (Microsoft Bing Remote Code Execution Vulnerability) vendor-advisory patch

cve.org (CVE-2026-33819)

nvd.nist.gov (CVE-2026-33819)

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