CVE-2017-8621 json
Microsoft Exchange Server 2010 SP3, Exchange Server 2013 SP3, Exchange Server 2013 CU16, and Exchange Server 2016 CU5 allows an open redire…
published 2017-07-11 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-17570
- cvss
- 6.1
- version 3.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.2%
- EPSS 3.2% chance of exploitation in 30 days, percentile 88%
- public exploits
- 0
- none known
Summary
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".
Patch / fix
Exploit prediction
3.17% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.0 | 6.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVD | 2.0 | 5.8 | AV:N/AC:M/Au:N/C:P/I:P/A:N |
Affected products
- Microsoft Corporation Microsoft Exchange Server 2010 SP3, Exchange Server 2013 SP3, Exchange Server 2013 CU16, and Exchange Server 2016 CU5.
Classification
- Weakness
-
- CWE-601 URL Redirection to Untrusted Site
- Technology feeds
References
-
portal.msrc.microsoft.com
/en-us/security-guidance/advisory/CVE-2017-8621
patch, vendor-advisory
-
securitytracker.com
/id/1038852
vdb-entry, third-party-advisory
-
securityfocus.com
/bid/99533
vdb-entry, third-party-advisory
Sources
- CVE List CVE-2017-8621
- NVD CVE-2017-8621
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.