CVE-2014-1266
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.74%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.4 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 5.74% probability · 93th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-295
- Affected
- apple/iphone os · apple/mac os x · apple/tvos
- Source
- product-security@apple.com
EPSS 5.7% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://it.slashdot.org/comments.pl?sid=4821073&cid=46310187Issue Tracking
- http://support.apple.com/kb/HT6146Vendor Advisory
- http://support.apple.com/kb/HT6147Vendor Advisory
- http://support.apple.com/kb/HT6148Vendor Advisory
- http://support.apple.com/kb/HT6150Vendor Advisory
- https://news.ycombinator.com/item?id=7281378Exploit, Issue Tracking
- https://www.cs.columbia.edu/~smb/blog/2014-02/2014-02-23.htmlExploit
- https://www.cs.columbia.edu/~smb/blog/2014-02/2014-02-24.htmlExploit
- https://www.imperialviolet.org/2014/02/22/applebug.htmlExploit
- http://it.slashdot.org/comments.pl?sid=4821073&cid=46310187Issue Tracking
- http://support.apple.com/kb/HT6146Vendor Advisory
- http://support.apple.com/kb/HT6147Vendor Advisory
- http://support.apple.com/kb/HT6148Vendor Advisory
- http://support.apple.com/kb/HT6150Vendor Advisory
- https://news.ycombinator.com/item?id=7281378Exploit, Issue Tracking
- https://www.cs.columbia.edu/~smb/blog/2014-02/2014-02-23.htmlExploit
- https://www.cs.columbia.edu/~smb/blog/2014-02/2014-02-24.htmlExploit
- https://www.imperialviolet.org/2014/02/22/applebug.htmlExploit
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.