Outlook Web App (OWA) in Microsoft Exchange Server 2013 SP1 and Cumulative Update 6 does not properly validate redirection tokens, which al…

published 2014-12-11 11y ago modified 2026-06-17 4mo ago also EUVD-2014-6220

cvss: 3.5; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 7.1%; EPSS 7.1% chance of exploitation in 30 days, percentile 94%
public exploits: 0; none known

Outlook Web App (OWA) in Microsoft Exchange Server 2013 SP1 and Cumulative Update 6 does not properly validate redirection tokens, which allows remote attackers to redirect users to arbitrary web sites and spoof the origin of e-mail messages via unspecified vectors, aka "Exchange URL Redirection Vulnerability."

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Exploit prediction

7.07% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
NVD	2.0	3.5	AV:N/AC:M/Au:S/C:N/I:P/A:N

Classification

Weakness

CWE-20 Improper Input Validation

Technology feeds

Microsoft Exchange rss critical rss

References

docs.microsoft.com /en-us/security-updates/securitybulletins/2014/ms14-075
vendor-advisory

Sources

CVE List CVE-2014-6336
NVD CVE-2014-6336

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