HIGH
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
Published Aug 29, 2011
7.5
HIGHCVSS 2.0
EPSS 6.55%
Description
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.
Affected products
No data.
Configuration 1
OR
- ≤ 4.2.9
- 1.0.0
- 1.0.1
- 1.0.2
- 1.1.0
- 1.1.1
- 1.1.2
- 1.1.3
- 1.1.4
- 1.1.5
- 2.0
- 2.0.0
- 2.0.1
- 2.0.2
- 2.1
- 2.1.1
- 2.2
- 2.2.1
- 3.0
- 3.0.1
- 3.1
- 3.1.2
- 3.1.3
- 3.2
- 3.2.1
- 3.2.2
- 4.0
- 4.0.1
- 4.0.2
- 4.1
- 4.2.1
- 4.2.5
- 4.2.8
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
7.5 HIGH NVD
AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
6.55% 0.06547
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.06547
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 6.55% (0.06547) | 93.60th | v5 (v2026.06.15) |
| Jun 15, 2026 | 6.39% (0.06387) | 92.75th | v5 (v2026.06.15) |
| May 24, 2026 | 8.01% (0.08007) | 92.20th | v4 (v2025.03.14) |
| Apr 24, 2026 | 10.49% (0.10491) | 93.28th | v4 (v2025.03.14) |
| Jan 20, 2026 | 8.01% (0.08007) | 91.84th | v4 (v2025.03.14) |
| Aug 26, 2025 | 10.49% (0.10491) | 92.95th | v4 (v2025.03.14) |
| Jun 11, 2025 | 9.01% (0.09009) | 92.17th | v4 (v2025.03.14) |
| Mar 30, 2025 | 13.70% (0.13703) | 93.65th | v4 (v2025.03.14) |
| Mar 29, 2025 | 30.37% (0.30369) | 94.77th | v4 (v2025.03.14) |
| Mar 28, 2025 | 13.70% (0.13703) | 93.66th | v4 (v2025.03.14) |
| Mar 27, 2025 | 30.37% (0.30369) | 96.04th | v4 (v2025.03.14) |
| Mar 20, 2025 | 13.70% (0.13703) | 93.74th | v4 (v2025.03.14) |
| Mar 19, 2025 | 30.37% (0.30369) | 96.11th | v4 (v2025.03.14) |
| Mar 17, 2025 | 11.96% (0.11957) | 93.20th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.45% (0.00454) | 76.02th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.32% (0.00320) | 69.76th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.32% (0.00320) | 65.83th | v3 (v2023.03.01) |
| Mar 6, 2023 | 17.17% (0.17166) | 96.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 17.17% (0.17166) | 95.87th | v2 (v2022.01.01) |
| Feb 4, 2022 | 17.17% (0.17166) | 93.10th | v2 (v2022.01.01) |
Weaknesses (1)
References (10)
- http://lists.apple.com/archives/security-announce/2011//Jul/msg00004.html vendor-advisoryx_refsource_APPLEVendor Advisory
- http://lists.apple.com/archives/security-announce/2011//Jul/msg00005.html vendor-advisoryx_refsource_APPLEVendor Advisory
- http://secunia.com/advisories/45369 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://securityreason.com/securityalert/8361 third-party-advisoryx_refsource_SREASON
- http://securitytracker.com/id?1025837 vdb-entryx_refsource_SECTRACK
- http://support.apple.com/kb/HT4824 x_refsource_CONFIRM
- http://support.apple.com/kb/HT4825 x_refsource_CONFIRMVendor Advisory
- http://www.securityfocus.com/archive/1/518982/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/48877 vdb-entryx_refsource_BID
- https://www.trustwave.com/spiderlabs/advisories/TWSL2011-007.txt x_refsource_MISC
| Link | Providers | Tags |
|---|---|---|
| http://lists.apple.com/archives/security-announce/2011//Jul/msg00004.html | vendor-advisoryx_refsource_APPLEVendor Advisory | |
| http://lists.apple.com/archives/security-announce/2011//Jul/msg00005.html | vendor-advisoryx_refsource_APPLEVendor Advisory | |
| http://secunia.com/advisories/45369 | third-party-advisoryx_refsource_SECUNIAVendor Advisory | |
| http://securityreason.com/securityalert/8361 | third-party-advisoryx_refsource_SREASON | |
| http://securitytracker.com/id?1025837 | vdb-entryx_refsource_SECTRACK | |
| http://support.apple.com/kb/HT4824 | x_refsource_CONFIRM | |
| http://support.apple.com/kb/HT4825 | x_refsource_CONFIRMVendor Advisory | |
| http://www.securityfocus.com/archive/1/518982/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/bid/48877 | vdb-entryx_refsource_BID | |
| https://www.trustwave.com/spiderlabs/advisories/TWSL2011-007.txt | x_refsource_MISC |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner apple
Published Aug 29, 2011
Updated Aug 6, 2024
Reserved Dec 23, 2010
Link CVE-2011-0228
CISA Vulnrichment
Updated n/a