CVE-2009-1335

Microsoft Internet Explorer 7 and 8 - Denial of Service via Large Document with Unprintable Characters

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2009-1335. PoCs published by Nam Nguyen.

AI-analyzed exploit summary This exploit triggers a denial-of-service condition in Microsoft Internet Explorer by sending a large amount of random data, causing the browser to hang. It bypasses the download dialog and floods the browser with junk characters.

Description

Microsoft Internet Explorer 7 and 8 on Windows XP and Vista allows remote attackers to cause a denial of service (application hang) via a large document composed of unprintable characters, aka MSRC 9011jr.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Nam Nguyen · pythondoswindows
https://www.exploit-db.com/exploits/32902

This exploit triggers a denial-of-service condition in Microsoft Internet Explorer by sending a large amount of random data, causing the browser to hang. It bypasses the download dialog and floods the browser with junk characters.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Microsoft Internet Explorer (versions affected by CVE-2009-1335)
No auth needed
Prerequisites: Network access to the target · Target must be using a vulnerable version of Internet Explorer
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Third Party Advisory mailing-list x_refsource_fulldisc
http://archives.neohapsis.com/archives/fulldisclosure/2009-04/0111.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/50350
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/34478
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/502617/100/0/threaded

Scores

EPSS 0.1567
EPSS Percentile 96.4%

Details

Status published
Products (2)
microsoft/internet_explorer 7
microsoft/internet_explorer 8
Published Apr 17, 2009
Tracked Since Feb 18, 2026