Microsoft .NET Framework 2.0 SP2, 3.5.1, and 4 does not properly validate the System.Net.Sockets trust level, which allows remote attackers to obtain sensitive information or trigger arbitrary outbound network traffic via (1) a crafted XAML browser application (aka XBAP), (2) a crafted ASP.NET application, or (3) a crafted .NET Framework application, aka "Socket Restriction Bypass Vulnerability."
Published Aug 10, 2011
4.3
MEDIUMCVSS 2.0
EPSS 20.21%
Description
Microsoft .NET Framework 2.0 SP2, 3.5.1, and 4 does not properly validate the System.Net.Sockets trust level, which allows remote attackers to obtain sensitive information or trigger arbitrary outbound network traffic via (1) a crafted XAML browser application (aka XBAP), (2) a crafted ASP.NET application, or (3) a crafted .NET Framework application, aka "Socket Restriction Bypass Vulnerability."
Affected products
No data.
Configuration 1
- 4.0
Running on/with
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- r2
- r2
- n/a
- n/a
- n/a
Configuration 2
- 3.5.1
Running on/with
- n/a
- r2
- r2
Configuration 3
- 2.0
Running on/with
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
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:P/I:N/A:N
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Jan 10, 2024 · SSVC 2.0.3
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 (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 20.21% (0.20210) | 97.40th | v5 (v2026.06.15) |
| Jun 15, 2026 | 20.21% (0.20210) | 97.13th | v5 (v2026.06.15) |
| Dec 28, 2025 | 14.26% (0.14256) | 94.17th | v4 (v2025.03.14) |
| Dec 27, 2025 | 18.61% (0.18612) | 95.07th | v4 (v2025.03.14) |
| Oct 28, 2025 | 14.26% (0.14256) | 94.09th | v4 (v2025.03.14) |
| Oct 27, 2025 | 18.61% (0.18612) | 95.00th | v4 (v2025.03.14) |
| Oct 1, 2025 | 14.26% (0.14256) | 94.19th | v4 (v2025.03.14) |
| Mar 30, 2025 | 18.61% (0.18612) | 94.75th | v4 (v2025.03.14) |
| Mar 29, 2025 | 15.75% (0.15745) | 91.25th | v4 (v2025.03.14) |
| Mar 19, 2025 | 18.61% (0.18612) | 94.52th | v4 (v2025.03.14) |
| Mar 17, 2025 | 14.59% (0.14592) | 93.96th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.68% (0.00682) | 80.69th | v3 (v2023.03.01) |
| Apr 19, 2024 | 0.68% (0.00682) | 79.79th | v3 (v2023.03.01) |
| Dec 17, 2023 | 0.68% (0.00682) | 77.79th | v3 (v2023.03.01) |
| Jul 6, 2023 | 0.71% (0.00715) | 77.88th | v3 (v2023.03.01) |
| May 9, 2023 | 0.76% (0.00764) | 78.53th | v3 (v2023.03.01) |
| Mar 10, 2023 | 1.05% (0.01050) | 81.75th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.18% (0.01181) | 82.84th | v3 (v2023.03.01) |
| Mar 6, 2023 | 25.80% (0.25802) | 97.04th | v2 (v2022.01.01) |
| Feb 4, 2022 | 25.80% (0.25802) | 95.59th | v2 (v2022.01.01) |
References (2)
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-069 vendor-advisoryx_refsource_MS
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12901 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-069 | vendor-advisoryx_refsource_MS | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12901 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.