Microsoft Windows Media Services 4.0/4.1 Unicast Service memory leak

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Microsoft Windows Media Services 4.0/4.1. Impacted is an unknown function of the component Unicast Service. This manipulation causes memory leak. This vulnerability is tracked as CVE-2001-0083. No exploit exists. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability classified as problematic was found in Microsoft Windows Media Services 4.0/4.1 (Operating System). Affected by this vulnerability is some unknown functionality of the component Unicast Service. The manipulation with an unknown input leads to a memory leak vulnerability. The CWE definition for the vulnerability is CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. As an impact it is known to affect availability. The summary by CVE is:

Windows Media Unicast Service in Windows Media Services 4.0 and 4.1 does not properly shut down some types of connections, producing a memory leak that allows remote attackers to cause a denial of service via a series of severed connections, aka the "Severed Windows Media Server Connection" vulnerability.

The weakness was disclosed 02/12/2001 with NTT Communications as MS00-097 as confirmed bulletin (Technet). The advisory is shared at microsoft.com. This vulnerability is known as CVE-2001-0083. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 90003 (Microsoft Windows Media Services Severed Connection DoS Vulnerability (MS00-097)).

Applying the patch MS00-097 is able to eliminate this problem. The bugfix is ready for download at microsoft.com.

The vulnerability is also documented in the databases at X-Force (5785), SecurityFocus (BID 2123†) and Vulnerability Center (SBV-3969†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Version

License

Support

  • end of life (old version)

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory leak
CWE: CWE-401 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: MS00-097

Timelineinfo

12/14/2000 🔍
02/12/2001 +60 days 🔍
02/12/2001 +0 days 🔍
02/12/2001 +0 days 🔍
03/15/2004 +1127 days 🔍
07/03/2014 +3762 days 🔍
10/09/2025 +4116 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS00-097
Organization: NTT Communications
Status: Confirmed

CVE: CVE-2001-0083 (🔍)
GCVE (CVE): GCVE-0-2001-0083
GCVE (VulDB): GCVE-100-16417
X-Force: 5785 - Microsoft Media Services dropped connection denial of service
SecurityFocus: 2123 - Microsoft Windows Media Services Severed Connection DoS Vulnerability
Vulnerability Center: 3969 - [MS00-097] Microsoft Windows Media Services Memory Leakage via Severed Connections, High

Entryinfo

Created: 07/03/2014 11:08
Updated: 10/09/2025 16:55
Changes: 07/03/2014 11:08 (62), 05/20/2019 14:38 (3), 10/09/2025 16:55 (18)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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