How severe is CVE-2015-1771?

CVE-2015-1771 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2015-1771 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-1771?

CVE-2015-1771 primarily affects Microsoft Exchange Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-1771?

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

When was CVE-2015-1771 published?

CVE-2015-1771 was published on 2015-06-10 and last updated on 2026-06-17.

CVE-2015-1771

CVE-2015-1771 is a medium-severity vulnerability in Microsoft Exchange Server with a CVSS 2.0 base score of 6.8. 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-352.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Microsoft Exchange Server
Published: 2015-06-10
Last modified: 2026-06-17

Description

Cross-site request forgery (CSRF) vulnerability in the web applications in Microsoft Exchange Server 2013 SP1 and Cumulative Update 8 allows remote attackers to hijack the authentication of arbitrary users, aka "Exchange Cross-Site Request Forgery Vulnerability."

Frequently asked questions

What is CVE-2015-1771?: Cross-site request forgery (CSRF) vulnerability in the web applications in Microsoft Exchange Server 2013 SP1 and Cumulative Update 8 allows remote attackers to hijack the authentication of arbitrary users, aka "Exchange Cross-Site Request Forgery Vulnerability."
How severe is CVE-2015-1771?: CVE-2015-1771 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2015-1771 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-1771?: CVE-2015-1771 primarily affects Microsoft Exchange Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-1771?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-1771 published?: CVE-2015-1771 was published on 2015-06-10 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_8:*:*:*:*:*:*
cpe:2.3:a:microsoft:exchange_server:2013:sp1:*:*:*:*:*:*

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