CVE-2014-0253: n/a vulnerability

CVE-2014-0253: 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 co...

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."

UnknownCVSS not scoredNot KEV-listedUpdatedAug 6, 2024, 09:13 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2014-0253 is a denial-of-service flaw in several Microsoft .NET Framework versions. Crafted HTTP POST requests can make an ASP.NET process hang by consuming resources tied to stale or closed TCP connections. The business impact is service outage, not data theft, based on the supplied sources. Most relevant exposure is internet-facing ASP.NET applications running Microsoft .NET Framework 1.1 SP1, 2.0 SP2, 3.5, 3.5.1, 4, 4.5, or 4.5.1. Internal ASP.NET services may also be exposed if reachable by untrusted users. Prioritize as a legacy availability risk. It does not indicate compromise of confidentiality, but historically exploited remote denial of service can disrupt public applications and customer-facing services if old .NET stacks remain exposed. Mitigation focus: Inventory ASP.NET hosts and installed .NET Framework versions.; Prioritize internet-facing systems using the affected .NET versions.; Review and apply Microsoft guidance in MS14-009..

Prepared: Jun 14, 2026, 14:50 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Feb 12, 2014, 02:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
MS14-009CVE reference · vendor-advisory, x_refsource_MS

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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