CVE-2003-1321

Avant Browser 8.02 - Buffer Overflow via Long URL

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2003-1321. PoCs published by [email protected].

AI-analyzed exploit summary The writeup describes a buffer overflow vulnerability in Avant Browser due to insufficient boundary checks on URL values, potentially allowing arbitrary code execution in the context of the user running the browser.

Description

Buffer overflow in Avant Browser 8.02 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long URL in an HTTP request.

Exploits (1)

exploitdb WRITEUP VERIFIED
by [email protected] · textdosmultiple
https://www.exploit-db.com/exploits/23050

The writeup describes a buffer overflow vulnerability in Avant Browser due to insufficient boundary checks on URL values, potentially allowing arbitrary code execution in the context of the user running the browser.

Classification
Writeup 80%
Attack Type
Rce
Complexity
Trivial
Reliability
Theoretical
Target: Avant Browser (version not specified)
No auth needed
Prerequisites: Victim must visit a malicious URL or webpage
mistral-large-3 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/12974
Exploit mailing-list x_refsource_bugtraq
http://marc.info/?l=bugtraq&m=106150462504484&w=2
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/8471

Scores

EPSS 0.0447
EPSS Percentile 90.5%

Details

Status published
Products (1)
avant_force/avant_browser 8.2
Published Dec 31, 2003
Tracked Since Feb 18, 2026