The kernel in Apple iOS before 5 and Apple TV before 4.4 does not properly recover memory allocated for incomplete TCP connections, which allows remote attackers to cause a denial of service (resource consumption) by making many connection attempts
Published Oct 14, 2011
5.0
MEDIUMCVSS 2.0
EPSS 2.44%
Description
The kernel in Apple iOS before 5 and Apple TV before 4.4 does not properly recover memory allocated for incomplete TCP connections, which allows remote attackers to cause a denial of service (resource consumption) by making many connection attempts.
Affected products
No data.
Configuration 1
Configuration 2
- 3.0
- 3.1
- 3.1
- 3.1
- 3.1.2
- 3.1.3
- 3.2
- 3.2
- 3.2.1
- 3.2.1
- 3.2.2
- 4.0
- 4.0
- 4.0
- 4.0.1
- 4.0.1
- 4.0.1
- 4.0.2
- 4.1
- 4.2.1
- 4.2.5
- 4.2.8
- 4.3.0
- 4.3.1
- 4.3.2
- 4.3.3
- 4.3.5
- 4.3.5
- 4.3.5
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:N/I:N/A:P
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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.44% (0.02439) | 83.72th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.44% (0.02439) | 82.11th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.24% (0.01238) | 77.86th | v4 (v2025.03.14) |
| Dec 12, 2024 | 3.17% (0.03168) | 91.51th | v3 (v2023.03.01) |
| Mar 7, 2023 | 3.17% (0.03168) | 89.60th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
References (6)
- http://lists.apple.com/archives/Security-announce/2011//Oct/msg00001.html vendor-advisoryx_refsource_APPLEVendor Advisory
- http://lists.apple.com/archives/Security-announce/2011//Oct/msg00002.html vendor-advisoryx_refsource_APPLEVendor Advisory
- http://support.apple.com/kb/HT4999 x_refsource_CONFIRMVendor Advisory
- http://support.apple.com/kb/HT5001 x_refsource_CONFIRMVendor Advisory
- http://www.securityfocus.com/bid/50087 vdb-entryx_refsource_BID
- https://exchange.xforce.ibmcloud.com/vulnerabilities/70530 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://lists.apple.com/archives/Security-announce/2011//Oct/msg00001.html | vendor-advisoryx_refsource_APPLEVendor Advisory | |
| http://lists.apple.com/archives/Security-announce/2011//Oct/msg00002.html | vendor-advisoryx_refsource_APPLEVendor Advisory | |
| http://support.apple.com/kb/HT4999 | x_refsource_CONFIRMVendor Advisory | |
| http://support.apple.com/kb/HT5001 | x_refsource_CONFIRMVendor Advisory | |
| http://www.securityfocus.com/bid/50087 | vdb-entryx_refsource_BID | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/70530 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.