CVE-2003-0511

Cisco IOS - Denial of Service via Malformed URL

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2003-0511. PoCs published by blackangels.

AI-analyzed exploit summary This Perl script exploits multiple Cisco vulnerabilities, including a DoS vulnerability in Cisco Aironet AP1x00 series devices via malformed HTTP GET requests. It contains multiple exploit functions targeting various Cisco devices and services.

Description

The web server for Cisco Aironet AP1x00 Series Wireless devices running certain versions of IOS 12.2 allow remote attackers to cause a denial of service (reload) via a malformed URL.

Exploits (1)

exploitdb WORKING POC VERIFIED
by blackangels · perldoshardware
https://www.exploit-db.com/exploits/22962

This Perl script exploits multiple Cisco vulnerabilities, including a DoS vulnerability in Cisco Aironet AP1x00 series devices via malformed HTTP GET requests. It contains multiple exploit functions targeting various Cisco devices and services.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Moderate
Reliability
Reliable
Target: Cisco Aironet AP1x00 series devices, various Cisco IOS versions
No auth needed
Prerequisites: Network access to the target device
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Vendor Advisory mailing-list x_refsource_vulnwatch
http://archives.neohapsis.com/archives/vulnwatch/2003-q3/0055.html
Vendor Advisory vendor-advisory x_refsource_cisco
http://www.cisco.com/warp/public/707/cisco-sa-20030728-ap1x00.shtml
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5834

Scores

EPSS 0.0904
EPSS Percentile 94.6%

Details

Status published
Products (4)
cisco/ios 12.2\(4\)ja
cisco/ios 12.2\(4\)ja1
cisco/ios 12.2\(8\)ja
cisco/ios 12.2\(11\)ja
Published Aug 27, 2003
Tracked Since Feb 18, 2026