CVE-2019-25658

MEDIUM

a-Mac Address Change 5.4 Local Buffer Overflow DoS

Title source: cna
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2019-25658. PoCs published by Rafael Pedrero.

AI-analyzed exploit summary This Python script generates a buffer overflow payload (212 'A' characters) to trigger a local DoS in a-Mac Address Change v5.4 by pasting the payload into registration fields. The crash occurs due to insufficient input validation in the registration form.

Description

a-Mac Address Change 5.4 contains a local buffer overflow vulnerability that allows local attackers to crash the application by supplying oversized input to registration form fields. Attackers can paste 212 bytes of data into the 'Your Name', 'Your Company', or 'Register Code' fields and click the Register button to trigger a denial of service crash.

Exploits (1)

exploitdb WORKING POC
by Rafael Pedrero · pythondoswindows
https://www.exploit-db.com/exploits/46292

This Python script generates a buffer overflow payload (212 'A' characters) to trigger a local DoS in a-Mac Address Change v5.4 by pasting the payload into registration fields. The crash occurs due to insufficient input validation in the registration form.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: a-Mac Address Change v5.4
No auth needed
Prerequisites: a-Mac Address Change v5.4 running on Windows XP SP3 · ability to paste clipboard content into the registration form
devstral-2 · analyzed Apr 07, 2026 Full analysis →

References (3)

Core 3
Core References
Exploit exploit
ExploitDB-46292
https://www.exploit-db.com/exploits/46292
Product product
Official Product Homepage
http://amac.paqtool.com/
Third Party Advisory third-party-advisory
VulnCheck Advisory: a-Mac Address Change 5.4 Local Buffer Overflow DoS
https://www.vulncheck.com/advisories/a-mac-address-change-local-buffer-overflow-dos

Scores

CVSS v3 5.5
EPSS 0.0014
EPSS Percentile 3.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-787
Status published
Products (1)
Amac/Mac Address Change 5.4
Published Apr 05, 2026
Tracked Since Apr 06, 2026