Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5, 3.5.1, 4, 4.5, and 4.5.1 does not properly determine TCP connection states, which allows remote attackers to cause a denial of service (ASP.NET daemon hang) via crafted HTTP requests that trigger persistent resource consumption for a (1) stale or (2) closed connection, as exploited in the wild in February 2014, aka "POST Request DoS Vulnerability."
Published Feb 12, 2014
5.0
MEDIUMCVSS 2.0
EPSS 38.70%
Description
Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5, 3.5.1, 4, 4.5, and 4.5.1 does not properly determine TCP connection states, which allows remote attackers to cause a denial of service (ASP.NET daemon hang) via crafted HTTP requests that trigger persistent resource consumption for a (1) stale or (2) closed connection, as exploited in the wild in February 2014, aka "POST Request DoS Vulnerability."
Affected products
No data.
- 1.1
- 2.0
- 3.5
- 3.5.1
- 4.0
- 4.5
- 4.5.1
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: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 (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 38.70% (0.38697) | 98.54th | v5 (v2026.06.15) |
| Jun 15, 2026 | 38.70% (0.38697) | 98.39th | v5 (v2026.06.15) |
| Mar 10, 2026 | 22.42% (0.22422) | 95.72th | v4 (v2025.03.14) |
| Mar 30, 2025 | 18.72% (0.18722) | 94.78th | v4 (v2025.03.14) |
| Mar 29, 2025 | 23.02% (0.23016) | 93.39th | v4 (v2025.03.14) |
| Mar 23, 2025 | 18.72% (0.18722) | 94.51th | v4 (v2025.03.14) |
| Mar 17, 2025 | 9.53% (0.09534) | 92.27th | v4 (v2025.03.14) |
| Dec 12, 2024 | 11.48% (0.11477) | 95.48th | v3 (v2023.03.01) |
| Oct 30, 2024 | 11.48% (0.11477) | 95.40th | v3 (v2023.03.01) |
| Aug 30, 2024 | 8.44% (0.08444) | 94.54th | v3 (v2023.03.01) |
| Jul 7, 2024 | 7.29% (0.07290) | 94.10th | v3 (v2023.03.01) |
| May 18, 2024 | 6.25% (0.06254) | 93.57th | v3 (v2023.03.01) |
| Mar 31, 2024 | 4.30% (0.04301) | 92.13th | v3 (v2023.03.01) |
| Feb 11, 2024 | 2.20% (0.02197) | 89.08th | v3 (v2023.03.01) |
| Jun 18, 2023 | 2.45% (0.02446) | 88.46th | v3 (v2023.03.01) |
| Apr 28, 2023 | 1.77% (0.01772) | 86.18th | v3 (v2023.03.01) |
| Mar 8, 2023 | 1.74% (0.01739) | 85.95th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.24% (0.01245) | 83.36th | v3 (v2023.03.01) |
| Mar 6, 2023 | 37.09% (0.37093) | 97.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 37.09% (0.37093) | 97.07th | v2 (v2022.01.01) |
References (5)
- http://osvdb.org/103162 vdb-entryx_refsource_OSVDB
- http://secunia.com/advisories/56793 third-party-advisoryx_refsource_SECUNIA
- http://www.securityfocus.com/bid/65415 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1029745 vdb-entryx_refsource_SECTRACK
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-009 vendor-advisoryx_refsource_MS
| Link | Providers | Tags |
|---|---|---|
| http://osvdb.org/103162 | vdb-entryx_refsource_OSVDB | |
| http://secunia.com/advisories/56793 | third-party-advisoryx_refsource_SECUNIA | |
| http://www.securityfocus.com/bid/65415 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id/1029745 | vdb-entryx_refsource_SECTRACK | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-009 | vendor-advisoryx_refsource_MS |
Change history (0)
No recorded changes yet.