CVE-2018-25427

9.3 criticalEPSS 0.9%

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.

Severity

CVSS 4.0

9.3 critical

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

CVSS 3.1

9.8 critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.9% chance of exploitation in the next 30 days; higher than 60% of CVEs (scores of 2026-10-31)
CWE: CWE-121
Published: 2026-06-01
Modified: 2026-07-22
Record from: the NVD, synced 2026-10-19

References

http://www.armcode.com/
http://www.armcode.com/downloads/arm-whois.exe
https://www.exploit-db.com/exploits/45796
https://www.vulncheck.com/advisories/arm-whois-buffer-overflow-via-seh-overwrite

Check your stack JSON