Microsoft Exchange Server Deserialization of Untrusted Data Vulnerability

Exploited in the wild. Listed by CISA on 2026-04-13; known to be used by ransomware.

59.3%likelihood of exploitation, next 30 days

99%of all CVEs are less likely

Nonecheck to confirm it

Microsoft Exchange Server contains a deserialization of untrusted data that allows an authenticated attacker to achieve remote code execution.

No ready check is stored for this CVE. Confirm it by hand from the references.

References

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