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Microsoft Security Response CenterCVE-2026-33819

Microsoft Bing Remote Code Execution Vulnerability

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

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10.0CVSS out of 10Critical severity
Scope

What the vendor says is affected

  • Microsoft Bing
Timeline

When this advisory changed

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Added to SecurityAlert

    We collected the advisory from the official source.

Vulnerabilities

CVEs named in this advisory

CVE-2026-33819View CVSS, KEV, EPSS, and threat context
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