The Private Browsing feature in Apple Safari before 5.1.1 on Mac OS X does not properly recognize the Always value of the Block Cookies setting, which makes it easier for remote web servers to track users via a cookie
Published Oct 14, 2011
5.0
MEDIUMCVSS 2.0
EPSS 1.45%
Description
The Private Browsing feature in Apple Safari before 5.1.1 on Mac OS X does not properly recognize the Always value of the Block Cookies setting, which makes it easier for remote web servers to track users via a cookie.
Affected products
No data.
- n/a
- ≤ 5.1
- 1.0
- 1.0
- 1.0
- 1.0.0
- 1.0.0b1
- 1.0.0b2
- 1.0.1
- 1.0.2
- 1.0.3
- 1.0.3
- 1.0.3
- 1.0b1
- 1.1
- 1.1.0
- 1.1.1
- 1.2
- 1.2.0
- 1.2.1
- 1.2.2
- 1.2.3
- 1.2.4
- 1.2.5
- 1.3
- 1.3.0
- 1.3.1
- 1.3.2
- 1.3.2
- 1.3.2
- 2
- 2.0
- 2.0.0
- 2.0.1
- 2.0.2
- 2.0.3
- 2.0.3
- 2.0.3
- 2.0.3
- 2.0.3
- 2.0.4
- 2.0.4
- 3
- 3.0
- 3.0.0
- 3.0.0
- 3.0.0b
- 3.0.0b
- 3.0.1
- 3.0.1
- 3.0.1
- 3.0.1b
- 3.0.1b
- 3.0.2
- 3.0.2
- 3.0.2b
- 3.0.2b
- 3.0.3
- 3.0.3
- 3.0.3b
- 3.0.3b
- 3.0.4
- 3.0.4
- 3.0.4b
- 3.0.4b
- 3.1.0
- 3.1.0
- 3.1.0b
- 3.1.0b
- 3.1.1
- 3.1.1b
- 3.1.2
- 3.1.2b
- 3.2.0
- 3.2.0b
- 3.2.1
- 3.2.1b
- 3.2.2
- 3.2.2b
- 4.0
- 4.0
- 4.0.0b
- 4.0.1
- 4.0.2
- 4.0.3
- 4.0.4
- 4.0.5
- 4.1
- 4.1.1
- 4.1.2
- 5.0
- 5.0.1
- 5.0.2
- 5.0.3
- 5.0.4
- 5.0.5
- 5.0.6
Running on/with
- ≤ 10.7.1
- ≤ 10.7.1
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:L/Au:N/C:P/I:N/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 | 1.45% (0.01448) | 72.37th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.45% (0.01448) | 69.79th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.43% (0.00430) | 60.46th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.18% (0.00179) | 56.39th | v3 (v2023.03.01) |
| Jun 21, 2024 | 0.18% (0.00179) | 55.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.18% (0.00179) | 53.24th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
References (4)
- http://lists.apple.com/archives/Security-announce/2011//Oct/msg00004.html vendor-advisoryx_refsource_APPLEVendor Advisory
- http://osvdb.org/76391 vdb-entryx_refsource_OSVDB
- http://support.apple.com/kb/HT5000 x_refsource_CONFIRMVendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/70569 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://lists.apple.com/archives/Security-announce/2011//Oct/msg00004.html | vendor-advisoryx_refsource_APPLEVendor Advisory | |
| http://osvdb.org/76391 | vdb-entryx_refsource_OSVDB | |
| http://support.apple.com/kb/HT5000 | x_refsource_CONFIRMVendor Advisory | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/70569 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.