How severe is CVE-2014-6319?

CVE-2014-6319 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2014-6319 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-6319?

CVE-2014-6319 primarily affects Microsoft Exchange Server. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-6319?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2014-6319 published?

CVE-2014-6319 was published on 2014-12-11 and last updated on 2026-06-17.

CVE-2014-6319

CVE-2014-6319 is a medium-severity vulnerability in Microsoft Exchange Server with a CVSS 2.0 base score of 5.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 10% (95th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Microsoft Exchange Server
Published: 2014-12-11
Last modified: 2026-06-17

Description

Outlook Web App (OWA) in Microsoft Exchange Server 2007 SP3, 2010 SP3, and 2013 SP1 and Cumulative Update 6 does not properly validate tokens in requests, which allows remote attackers to spoof the origin of e-mail messages via unspecified vectors, aka "Outlook Web App Token Spoofing Vulnerability."

Frequently asked questions

What is CVE-2014-6319?: Outlook Web App (OWA) in Microsoft Exchange Server 2007 SP3, 2010 SP3, and 2013 SP1 and Cumulative Update 6 does not properly validate tokens in requests, which allows remote attackers to spoof the origin of e-mail messages via unspecified vectors, aka "Outlook Web App Token Spoofing Vulnerability."
How severe is CVE-2014-6319?: CVE-2014-6319 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2014-6319 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 10% (95th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-6319?: CVE-2014-6319 primarily affects Microsoft Exchange Server. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-6319?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-6319 published?: CVE-2014-6319 was published on 2014-12-11 and last updated on 2026-06-17.

References

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-075

Affected products (4)

cpe:2.3:a:microsoft:exchange_server:2007:sp3:*:*:*:*:*:*
cpe:2.3:a:microsoft:exchange_server:2010:sp3:*:*:*:*:*:*
cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_6:*:*:*:*:*:*
cpe:2.3:a:microsoft:exchange_server:2013:sp1:*:*:*:*:*:*

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