CVE-2011-3427

Severity: low (CVSS 2.6 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-10-14 · updated 2026-06-16
Weakness: CWE-200

Description

The Data Security component in Apple iOS before 5 and Apple TV before 4.4 does not properly restrict use of the MD5 hash algorithm within X.509 certificates, which makes it easier for man-in-the-middle attackers to spoof servers or obtain sensitive information via a crafted certificate.

Affected products

Apple TV: 4.0, 4.1, 4.2, 4.3
Apple Iphone Os: 3.0, 3.1, 3.1.2, 3.1.3, 3.2, 3.2.1 (+13)

References

http://lists.apple.com/archives/Security-announce/2011//Oct/msg00001.html
http://lists.apple.com/archives/Security-announce/2011//Oct/msg00002.html
http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html
http://osvdb.org/76326
http://support.apple.com/kb/HT4999
http://support.apple.com/kb/HT5001
https://exchange.xforce.ibmcloud.com/vulnerabilities/70547
http://lists.apple.com/archives/Security-announce/2011//Oct/msg00001.html
http://lists.apple.com/archives/Security-announce/2011//Oct/msg00002.html
http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html
http://osvdb.org/76326
http://support.apple.com/kb/HT4999

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