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CVE-2026-33819 - Vulnerability Analysis

CriticalCVSS: 10.0

Last Updated: April 23, 2026

Microsoft Bing - Insecure Deserialization

Published: April 23, 2026Updated: April 23, 2026Remote Exploitable

Overview

Microsoft Bing contains an insecure deserialization vulnerability caused by deserialization of untrusted data, letting unauthorized attackers execute code remotely, exploit requires network access.

Severity & Score

Severity: Critical

CVSS Score: 10.0

Impact

Unauthorized attackers can execute arbitrary code remotely, potentially compromising the entire system.

Mitigation

Update to the latest version.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33819

Related Resources

Vulnerability Intelligence Dashboard
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Details

CVE ID: CVE-2026-33819
Severity: Critical
CVSS Score: 10.0
Type: insecure_deserialization
Status: new

CWE

CWE-502

CVSS Metrics

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H