What’s Vulnerable › Vulnerabilities

CVE-2017-8621

• Severity: medium (CVSS 6.1 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-07-11 · updated 2026-06-17
• Weakness: CWE-601

Description

Microsoft 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".

Affected products

• Microsoft Exchange Server: 2010-sp3, 2013-cumulative_update_16, 2013-sp1, 2016-cumulative_update_5
• Microsoft Exchange Server: Microsoft Exchange

References

• http://www.securityfocus.com/bid/99533
• http://www.securitytracker.com/id/1038852
• https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8621
• http://www.securityfocus.com/bid/99533
• http://www.securitytracker.com/id/1038852
• https://portal.msrc.microsoft.com/en-us/security-guidance/advisory/CVE-2017-8621

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