CVE-2003-1396

Opera Browser 6.05-7.10 - Heap-Based Buffer Overflow via Long Filename Extension

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2003-1396. PoCs published by imagine & nesumin.

AI-analyzed exploit summary This Perl CGI script exploits a heap-based memory corruption vulnerability in Opera 7.10 and earlier by sending a malformed filename with an excessively long extension. The exploit triggers a denial of service (DoS) by corrupting heap memory when the browser processes the filename.

Description

Heap-based buffer overflow in Opera 6.05 through 7.10 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a filename with a long extension.

Exploits (1)

exploitdb WORKING POC VERIFIED
by imagine & nesumin · perldoswindows
https://www.exploit-db.com/exploits/22550

This Perl CGI script exploits a heap-based memory corruption vulnerability in Opera 7.10 and earlier by sending a malformed filename with an excessively long extension. The exploit triggers a denial of service (DoS) by corrupting heap memory when the browser processes the filename.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Opera Browser <= 7.10
No auth needed
Prerequisites: A vulnerable version of Opera Browser · Ability to serve a malicious CGI script to the target
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Broken Link, Exploit mailing-list x_refsource_bugtraq
http://archives.neohapsis.com/archives/bugtraq/2003-04/0346.html
Broken Link, Patch, Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/7450
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/11894

Scores

EPSS 0.0909
EPSS Percentile 94.7%

Details

CWE
CWE-787
Status published
Products (1)
opera/opera_browser 6.0 - 7.10
Published Dec 31, 2003
Tracked Since Feb 18, 2026