CVE-2018-25423

MEDIUM

Arm Whois 3.11 Denial of Service via Buffer Overflow

Title source: cna
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2018-25423. PoCs published by Yair Rodríguez Aparicio.

AI-analyzed exploit summary This PoC demonstrates a denial-of-service vulnerability in Arm Whois 3.11 by generating a buffer overflow payload (700 'A' characters) and writing it to a file. The crash occurs when the payload is pasted into the application's input field.

Description

Arm Whois 3.11 contains a buffer overflow vulnerability that allows local attackers to crash the application by supplying an oversized input string. Attackers can paste a malicious buffer of 700 bytes into the IP address or domain input field to trigger a denial of service condition.

Exploits (1)

exploitdb WORKING POC
by Yair Rodríguez Aparicio · pythondoswindows_x86
https://www.exploit-db.com/exploits/45762

This PoC demonstrates a denial-of-service vulnerability in Arm Whois 3.11 by generating a buffer overflow payload (700 'A' characters) and writing it to a file. The crash occurs when the payload is pasted into the application's input field.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Arm Whois 3.11
No auth needed
Prerequisites: Python to generate the payload · Arm Whois 3.11 installed on Windows XP SP3
devstral-2 · analyzed May 30, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit exploit
ExploitDB-45762
https://www.exploit-db.com/exploits/45762
Product product
Official Product Homepage
http://www.armcode.com/
Product product
Product Reference
http://www.armcode.com/downloads/arm-whois.exe
Third Party Advisory third-party-advisory
VulnCheck Advisory: Arm Whois 3.11 Denial of Service via Buffer Overflow
https://www.vulncheck.com/advisories/arm-whois-denial-of-service-via-buffer-overflow

Scores

CVSS v3 6.2
EPSS 0.0014
EPSS Percentile 3.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-120
Status published
Products (1)
Armcode/Arm Whois 3.11
Published May 30, 2026
Tracked Since May 30, 2026