CVE-2014-1266
The SSLVerifySignedServerKeyExchange function in libsecurity_ssl/lib/sslKeyExchange.c in the Secure Transport feature in the Data Security component in...
- Published
- Feb 22, 2014
- Updated
- Aug 6, 2024
- Assigning CNA
- apple
- Evidence observed
- Aug 8, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:NLow · next 30 days
- Percentile
- 92.8%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
The SSLVerifySignedServerKeyExchange function in libsecurity_ssl/lib/sslKeyExchange.c in the Secure Transport feature in the Data Security component in Apple iOS 6.x before 6.1.6 and 7.x before 7.0.6, Apple TV 6.x before 6.0.2, and Apple OS X 10.9.x before 10.9.2 does not check the signature in a TLS Server Key Exchange message, which allows man-in-the-middle attackers to spoof SSL servers by (1) using an arbitrary private key for the signing step or (2) omitting the signing step.
Sources
4Proof-of-concept exploit for Apple SSL/TLS verification vulnerability (CVE-2014-1266) in iOS and OS X, demonstrating HTTPS interception via a proxy server.
Demonstrating that SSLVerifySignedServerKeyExchange() is trivially testable.
- SSLPatchPatch
Patch iOS SSL vulnerability (CVE-2014-1266)
Responsible use
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