Is CVE-2009-1536 being actively exploited?

CVE-2009-1536 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2009-1536?

CVE-2009-1536 has a CVSS 2.0 base score of 2.6 (LOW).

CVE-2009-1536

LOW · CVSS 2.6EPSS 51.3%EU EUVD

ASP.NET in Microsoft .NET Framework 2.0 SP1 and SP2 and 3.5 Gold and SP1, when ASP 2.0 is used in integrated mode on IIS 7.0, does not properly manage request scheduling, which allows remote attackers to cause a denial of service (daemon outage) via a series of crafted HTTP requests, aka "Remote Unauthenticated Denial of Service in ASP.NET Vulnerability."

Key facts

CVSS score: 2.6 (v2.0)
Severity: LOW
CVSS vector: AV:N/AC:H/Au:N/C:N/I:N/A:P
Weakness (CWE): CWE-20
EPSS score: 51.3% (99th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2009-1532)
Published: August 12, 2009
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-1532 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

microsoft / .net framework
microsoft / .net framework
microsoft / .net framework
microsoft / .net framework
microsoft / windows server 2008
microsoft / windows vista
microsoft / windows vista

Certified products that may be affected

17 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Microsoft Windows Server 2008 R2 Hyper-V Release 6.1.7600 - Microsoft Corporation - Common Criteria BSI-DSZ-CC-0755-2012 - archived
Microsoft Windows 7, Microsoft Windows Server 2008 R2 - Microsoft Corporation - Common Criteria CCEVS-VR-10390-2010 - archived
Windows Server 2008 R2 BitLocker™ Drive Encryption - Microsoft Corporation - FIPS 140 1339 - historical
Windows Server 2008 R2 Enhanced Cryptographic Provider (RSAENH) - Microsoft Corporation - FIPS 140 1337 - historical
Microsoft Windows Server 2008 R2 Kernel Mode Cryptographic Primitives Library (cng.sys) - Microsoft Corporation - FIPS 140 1335 - historical

See all 17 in the Security Certifications Explorer.

References

http://blogs.technet.com/srd/archive/2009/08/11/ms09-035-asp-net-denial-of-service-vulnerability.aspx(Vendor Advisory)
http://osvdb.org/56905(Broken Link)
http://secunia.com/advisories/36127(Third Party Advisory)
http://www.securityfocus.com/bid/35985(Patch, Third Party Advisory, VDB Entry)
http://www.securitytracker.com/id?1022715(Third Party Advisory, VDB Entry)
http://www.us-cert.gov/cas/techalerts/TA09-223A.html(Third Party Advisory, US Government Resource)
http://www.vupen.com/english/advisories/2009/2231(Permissions Required, Third Party Advisory)
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-036
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6393(Third Party Advisory)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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