CVE-2021-3120911.05.2021, 19:15Microsoft Exchange Server Spoofing VulnerabilityEnginsightProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVectorNISTPrimary6.5 MEDIUMNETWORKHIGHNONECVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:NAwaiting analysisThis vulnerability is currently awaiting analysis.Base ScoreCVSS 3.xEPSS ScorePercentile: UnknownCommon Weakness EnumerationCWE-290 - Authentication Bypass by SpoofingThis attack-focused weakness is caused by improperly implemented authentication schemes that are subject to spoofing attacks.Referenceshttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31209https://www.zerodayinitiative.com/advisories/ZDI-21-615/https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31209https://www.zerodayinitiative.com/advisories/ZDI-21-615/