Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5, 3.5.1, 4, 4.5, and 4.5.1 does not…
Priority MEDIUM 50CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
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."
Why it matters now
EPSS 0.38697 98th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:.net_framework:1.1:sp1:*:*:*:*:*:* | 1.1 sp1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:.net_framework:2.0:sp2:*:*:*:*:*:* | 2.0 sp2 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:* | 3.5 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:.net_framework:3.5.1:*:*:*:*:*:*:* | 3.5.1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:.net_framework:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:.net_framework:4.5:*:*:*:*:*:*:* | 4.5 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:.net_framework:4.5.1:*:*:*:*:*:*:* | 4.5.1 | Vulnerable | Microsoft |
- cpe:2.3:a:microsoft:.net_framework:1.1:sp1:*:*:*:*:*:* Versions 1.1 sp1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:.net_framework:2.0:sp2:*:*:*:*:*:* Versions 2.0 sp2 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:* Versions 3.5 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:.net_framework:3.5.1:*:*:*:*:*:*:* Versions 3.5.1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:.net_framework:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:.net_framework:4.5:*:*:*:*:*:*:* Versions 4.5 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:.net_framework:4.5.1:*:*:*:*:*:*:* Versions 4.5.1 Vulnerable ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2014-0253
- 2026-10-03 Alias added: GHSA-63vf-8cxj-r6hq
More Microsoft .net Framework vulnerabilities
- TI-2020-00622 XML injection in Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 KEVCVSS 3.1CRITICAL 9.8
- TI-2020-01112 A remote code execution vulnerability exists in .NET Framework, Microsoft SharePoint, and… KEVCVSS 3.1HIGH 7.8
- TI-2017-06273 Code injection in Microsoft .NET Framework KEVCVSS 3.1HIGH 7.8
- TI-2015-01495 The Windows DirectWrite library, as used in Microsoft .NET Framework 3.0 SP2, 3.5, 3.5.1… KEVCVSS 3.1HIGH 7.8
- TI-2024-19239 .NET Framework Information Disclosure Vulnerability KEVCVSS 3.1HIGH 7.5
- TI-2023-18684 ASP.NET Elevation of Privilege Vulnerability CVSS 3.1HIGH 8.8
Sources
- CVE-2014-0253 · CVE Program
- CVE-2014-0253 · NVD
- FIRST EPSS
- GHSA-63vf-8cxj-r6hq · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences