CVE-2017-8621

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Summary

CVECVE-2017-8621
StatePUBLISHED
Assignermicrosoft
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-07-11 21:29:02 UTC
Updated2025-04-20 01:37:25 UTC
DescriptionMicrosoft Exchange Server 2010 SP3, Exchange Server 2013 SP3, Exchange Server 2013 CU16, and Exchange Server 2016 CU5 allows an open redirect vulnerability that could lead to spoofing, aka "Microsoft Exchange Open Redirect Vulnerability".

Risk And Classification

Primary CVSS: v3.0 6.1 MEDIUM from [email protected]

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Problem Types: CWE-601 | Spoofing

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary6.1MEDIUMCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
2.0[email protected]Primary5.8AV:N/AC:M/Au:N/C:P/I:P/A:N

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None

AV:N/AC:M/Au:N/C:P/I:P/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Microsoft Exchange Server 2010 sp3 All All
Application Microsoft Exchange Server 2013 cumulative_update_16 All All
Application Microsoft Exchange Server 2013 sp1 All All
Application Microsoft Exchange Server 2016 cumulative_update_5 All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Microsoft Corporation Microsoft Exchange Server 2010 SP3 Exchange Server 2013 SP3 Exchange Server 2013 CU16 And Exchange Server 2016 CU5. affected Microsoft Exchange Not specified

References

ReferenceSourceLinkTags
Microsoft Exchange Input Validation Flaws Let Remote Users Conduct Open Redirect and Cross-Site Scripting Attacks - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com Third Party Advisory, VDB Entry
Microsoft Exchange Server CVE-2017-8621 Open Redirection Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8621 af854a3a-2127-422b-91ae-364da2661108 portal.msrc.microsoft.com Patch, Vendor Advisory
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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