How severe is CVE-2014-2735?

CVE-2014-2735 has a CVSS 2.0 base score of 5.8, rated medium severity.

Is CVE-2014-2735 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-2735?

CVE-2014-2735 primarily affects Winscp. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-2735?

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

When was CVE-2014-2735 published?

CVE-2014-2735 was published on 2014-04-22 and last updated on 2026-06-17.

CVE-2014-2735

CVE-2014-2735 is a medium-severity vulnerability in Winscp with a CVSS 2.0 base score of 5.8. 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-20.

Key facts

Severity: Medium (CVSS 2.0 base score 5.8)
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Winscp
Published: 2014-04-22
Last modified: 2026-06-17

Description

WinSCP before 5.5.3, when FTP with TLS is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.

Frequently asked questions

What is CVE-2014-2735?: WinSCP before 5.5.3, when FTP with TLS is used, does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
How severe is CVE-2014-2735?: CVE-2014-2735 has a CVSS 2.0 base score of 5.8, rated medium severity.
Is CVE-2014-2735 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-2735?: CVE-2014-2735 primarily affects Winscp. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-2735?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-2735 published?: CVE-2014-2735 was published on 2014-04-22 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:winscp:winscp:*:*:*:*:*:*:*:*
cpe:2.3:a:winscp:winscp:5.5:*:*:*:*:*:*:*
cpe:2.3:a:winscp:winscp:5.5.1:*:*:*:*:*:*:*

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