CVE-2018-25427 CRITICAL

CVE-2018-25427: Arm Whois 3.11 Buffer Overflow via SEH Overwrite

Vendor Armcode
Product Arm Whois
Weakness CWE-121
Published June 1, 2026
Last update June 2, 2026

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

Arm Whois 3.11 contains a stack-based buffer overflow vulnerability that allows remote attackers to execute arbitrary code by supplying oversized input to the IP address or domain field. Attackers can craft malicious input exceeding 658 bytes with shellcode to overwrite the structured exception handler and gain command execution when the application processes the input.

Key dates

02Disclosure timeline

June 1, 2026 CVE published
June 2, 2026 Record updated