EXPOSURES › CVE-2026-56191
CVE-2026-56191
CRITICAL
DETAIL
SourceNVD · cve
Published2026-07-24
CVSS10.0
Referencehttps://nvd.nist.gov/vuln/detail/CVE-2026-56191 ↗
▸ RECOMMENDED ACTION Critical severity — schedule patching of the affected products.
DESCRIPTION
Improper authentication in Microsoft Exchange Online allows an unauthorized attacker to perform tampering over a network.
AFFECTED FEDRAMP PRODUCTS · 0
No correlated FedRAMP products.