The Keychain implementation in Apple Mac OS X 10.6.8 and earlier does not properly handle an untrusted attribute of a Certification Authority certificate, which makes it easier for man-in-the-middle attackers to spoof arbitrary SSL servers via an Extended Validation certificate, as demonstrated by https access with Safari
Published Sep 10, 2011
4.3
MEDIUMCVSS 2.0
EPSS 0.86%
Description
The Keychain implementation in Apple Mac OS X 10.6.8 and earlier does not properly handle an untrusted attribute of a Certification Authority certificate, which makes it easier for man-in-the-middle attackers to spoof arbitrary SSL servers via an Extended Validation certificate, as demonstrated by https access with Safari.
Affected products
No data.
Configuration 1
Configuration 2
- ≤ 10.6.8
- 10.6.0
- 10.6.1
- 10.6.2
- 10.6.3
- 10.6.4
- 10.6.5
- 10.6.6
- 10.6.7
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.
AV:N/AC:M/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.86% (0.00857) | 56.92th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.86% (0.00857) | 53.50th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.38% (0.00383) | 57.54th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.15% (0.00154) | 53.07th | v3 (v2023.03.01) |
| Jun 14, 2024 | 0.15% (0.00154) | 51.88th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.15% (0.00154) | 49.86th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.11% (0.01108) | 55.18th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.11% (0.01108) | 53.57th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.11% (0.01108) | 51.54th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.11% (0.01108) | 29.61th | v2 (v2022.01.01) |
References (6)
- http://lists.apple.com/archives/security-announce/2012/Feb/msg00000.html vendor-advisoryx_refsource_APPLE
- http://support.apple.com/kb/HT5130 x_refsource_CONFIRM
- http://www.computerworld.com/s/article/9219669/Mac_OS_X_can_t_properly_revoke_dodgy_digital_certificates x_refsource_MISC
- http://www.securityfocus.com/bid/49429 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1026002 vdb-entryx_refsource_SECTRACK
- https://exchange.xforce.ibmcloud.com/vulnerabilities/69556 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://lists.apple.com/archives/security-announce/2012/Feb/msg00000.html | vendor-advisoryx_refsource_APPLE | |
| http://support.apple.com/kb/HT5130 | x_refsource_CONFIRM | |
| http://www.computerworld.com/s/article/9219669/Mac_OS_X_can_t_properly_revoke_dodgy_digital_certificates | x_refsource_MISC | |
| http://www.securityfocus.com/bid/49429 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id?1026002 | vdb-entryx_refsource_SECTRACK | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/69556 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.