CVE-2026-33819

critical Microsoft
CVSS v3 Base Score
10.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS Score
0.4%
Exploitation probability in 30 days
Top 42% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Published: April 23, 2026 (20 days ago)
Last Modified: May 5, 2026
Vendor: Microsoft
Source: NVD

Description

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

CWE

CWE-502

Affected Products

microsoft bing

References

🔗 msrc.microsoft.com