CVE-2011-0228
HIGH · CVSS 7.5EPSS 6.6%EU EUVD
The Data Security component in Apple iOS before 4.2.10 and 4.3.x before 4.3.5 does not check the basicConstraints parameter during validation of X.509 certificate chains, which allows man-in-the-middle attackers to spoof an SSL server by using a non-CA certificate to sign a certificate for an arbitrary domain.
Key facts
- CVSS score
- 7.5 (v2.0)
- Severity
- HIGH
- CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P- Weakness (CWE)
- CWE-20
- EPSS score
- 6.6% (94th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2011-0254)
- Published
- August 29, 2011
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-0254 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
- apple / iphone os
References
- http://lists.apple.com/archives/security-announce/2011//Jul/msg00004.html(Vendor Advisory)
- http://lists.apple.com/archives/security-announce/2011//Jul/msg00005.html(Vendor Advisory)
- http://secunia.com/advisories/45369(Vendor Advisory)
- http://securityreason.com/securityalert/8361
- http://securitytracker.com/id?1025837
- http://support.apple.com/kb/HT4824
- http://support.apple.com/kb/HT4825(Vendor Advisory)
- http://www.securityfocus.com/archive/1/518982/100/0/threaded
- http://www.securityfocus.com/bid/48877
- https://www.trustwave.com/spiderlabs/advisories/TWSL2011-007.txt
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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