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."
CVE-2009-1536
NONECVSS 0.0Elevated
0.0
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
- High exploitation likelihood — EPSS 51%
CISA-KEV: Not listedEPSS: 51%CVSS: —Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 98.8%
- KEV
- Not listed
Published
August 12, 2009
Last Modified
April 23, 2026
References (18)
- secure@microsofthttp://blogs.technet.com/srd/archive/2009/08/11/ms09-035-asp-net-denial-of-service-vulnerability.aspx
- secure@microsofthttp://osvdb.org/56905
- secure@microsofthttp://secunia.com/advisories/36127
- secure@microsofthttp://www.securityfocus.com/bid/35985
- secure@microsofthttp://www.securitytracker.com/id?1022715
- secure@microsofthttp://www.us-cert.gov/cas/techalerts/TA09-223A.html
- secure@microsofthttp://www.vupen.com/english/advisories/2009/2231
- secure@microsofthttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-036
- secure@microsofthttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6393
- af854a3a-2127-422b-91ae-364da2661108http://blogs.technet.com/srd/archive/2009/08/11/ms09-035-asp-net-denial-of-service-vulnerability.aspx
- af854a3a-2127-422b-91ae-364da2661108http://osvdb.org/56905
- af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/36127
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/35985
- af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id?1022715
- af854a3a-2127-422b-91ae-364da2661108http://www.us-cert.gov/cas/techalerts/TA09-223A.html
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 4× in last 7d / 27× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-06 02:19 UTCEPSS rescore
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- 2026-06-10 22:14 UTCEPSS rescore
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- 2026-05-30 15:49 UTCEG score recompute
- 2026-05-30 15:49 UTCGHSA enrichment
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- 2026-05-20 11:21 UTCEPSS rescore
- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
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10 shownCWE-20
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- CVE-2005-0116NVD 0.0EG 9.0EPSS 99%NONE
- CVE-2002-1359NVD 0.0EG 9.0EPSS 100%NONE
- CVE-2000-0380NVD 0.0EG 9.0EPSS 98%NONE
- CVE-2000-0258EG 7.5EPSS 97%HIGH
- CVE-2004-2771EG 0.0EPSS 93%NONE
- CVE-2002-2443EG 0.0EPSS 93%NONE
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- CVE-2003-1568EG 0.0NONE
Frequently asked(4)
What is CVE-2009-1536?
CVE-2009-1536 is a none vulnerability published on August 12, 2009. 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…
When was CVE-2009-1536 disclosed?
CVE-2009-1536 was first published in the National Vulnerability Database on August 12, 2009, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2009-1536 actively exploited?
CVE-2009-1536 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2009-1536?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2009-1536, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2009-1536
Is Your Infrastructure Affected by CVE-2009-1536?
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