Microsoft Windows EducatedScholar resource management

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability has been found in Microsoft Windows and classified as critical. Affected is an unknown function. Performing a manipulation results in resource management (EducatedScholar). This vulnerability is known as CVE-2009-2526. Remote exploitation of the attack is possible. Furthermore, an exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical has been found in Microsoft Windows (Operating System) (the affected version unknown). This affects an unknown part. The manipulation with an unknown input leads to a resource management vulnerability (EducatedScholar). CWE is classifying the issue as CWE-399. This is going to have an impact on availability. The summary by CVE is:

Microsoft Windows Vista Gold, SP1, and SP2 and Server 2008 Gold and SP2 do not properly validate fields in SMBv2 packets, which allows remote attackers to cause a denial of service (infinite loop and system hang) via a crafted packet to the Server service, aka "SMBv2 Infinite Loop Vulnerability."

The weakness was published 10/14/2009 (Website). The advisory is shared at us-cert.gov. This vulnerability is uniquely identified as CVE-2009-2526. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed in Python. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 42106 (MS09-050: Vulnerabilities in SMBv2 Could Allow Remote Code Execution (975517)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 90527 (Microsoft Server Message Block (SMBv2) Remote Code Execution Vulnerability (MS09-050) and Shadow Brokers (EDUCATEDSCHOLAR)).

Upgrading eliminates this vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 8647.

The vulnerability is also documented in the databases at Tenable (42106), SecurityFocus (BID 36299†) and Vulnerability Center (SBV-23727†). Further details are available at blogs.technet.microsoft.com. Similar entries are available at VDB-4031, VDB-50451, VDB-50449 and VDB-50448. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Name: EducatedScholar
Class: Resource management / EducatedScholar
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 42106
Nessus Name: MS09-050: Vulnerabilities in SMBv2 Could Allow Remote Code Execution (975517)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 900965
OpenVAS Name: Microsoft Windows SMB2 Negotiation Protocol Remote Code Execution Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
TippingPoint: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

07/17/2009 🔍
09/07/2009 +52 days 🔍
10/13/2009 +36 days 🔍
10/13/2009 +0 days 🔍
10/14/2009 +1 days 🔍
10/14/2009 +0 days 🔍
10/14/2009 +0 days 🔍
03/18/2015 +1981 days 🔍
11/16/2025 +3896 days 🔍

Sourcesinfo

Vendor: microsoft.com
Product: microsoft.com

Advisory: us-cert.gov
Status: Confirmed

CVE: CVE-2009-2526 (🔍)
GCVE (CVE): GCVE-0-2009-2526
GCVE (VulDB): GCVE-100-50445

OVAL: 🔍

SecurityFocus: 36299 - Microsoft Windows SMB2 '_Smb2ValidateProviderCallback()' Remote Code Execution Vulnerability
Vulnerability Center: 23727 - [MS09-050] Microsoft Windows Vista and Server 2008 SMBv2 Infinite Loop Remote DoS Vulnerability, High

scip Labs: https://www.scip.ch/en/?labs.20161013
Misc.: 🔍
See also: 🔍

Entryinfo

Created: 03/18/2015 15:15
Updated: 11/16/2025 15:22
Changes: 03/18/2015 15:15 (45), 04/15/2017 19:29 (28), 08/23/2021 21:31 (1), 08/23/2021 21:42 (7), 08/23/2021 21:51 (2), 11/16/2025 15:22 (14)
Complete: 🔍
Cache ID: 216::103

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