CVE-2018-25427CWE-121

Arm Whois 3.11 Buffer Overflow via SEH Overwrite

Critical · published June 1, 2026

CVSS v4.0
9.3
EPSS
1%
Percentile
60.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
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
EPSS
0.00923 · 60.0th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2026-06-01T21:00Z
EPSS history
Timeline
  • 01 JUN 21:00Z
    Arm Whois 3.11 Buffer Overflow via SEH Overwrite
    cvelistv5