How severe is CVE-2015-3996?

CVE-2015-3996 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2015-3996 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-3996?

CVE-2015-3996 affects Afnetworking Project Afnetworking. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-3996?

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

When was CVE-2015-3996 published?

CVE-2015-3996 was published on 2015-10-27 and last updated on 2026-06-17.

CVE-2015-3996

CVE-2015-3996 is a medium-severity vulnerability in Afnetworking Project Afnetworking with a CVSS 2.0 base score of 4.3. 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-254.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 1% (53rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-254
Affected product: Afnetworking Project Afnetworking
Published: 2015-10-27
Last modified: 2026-06-17

Description

The default AFSecurityPolicy.validatesDomainName configuration for AFSSLPinningModeNone in the AFNetworking framework before 2.5.3, as used in the ownCloud iOS Library, disables verification of a server hostname against the domain name in the subject's Common Name (CN) 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-2015-3996?: The default AFSecurityPolicy.validatesDomainName configuration for AFSSLPinningModeNone in the AFNetworking framework before 2.5.3, as used in the ownCloud iOS Library, disables verification of a server hostname against the domain name in the subject's Common Name (CN) 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-2015-3996?: CVE-2015-3996 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2015-3996 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (53rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-3996?: CVE-2015-3996 affects Afnetworking Project Afnetworking. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-3996?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-3996 published?: CVE-2015-3996 was published on 2015-10-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:afnetworking_project:afnetworking:*:*:*:*:*:*:*:*

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