A AegiFlow
CRITICALCVSS 10.0

CVE-2026-56191

CVE-2026-56191 updated by NVD

Modified
2026-07-31
Sources
nvd

Summary

Improper authentication in Microsoft Exchange Online allows an unauthorized attacker to perform tampering over a network.

References

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

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