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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.

PUBLISHED Reserved 2026-05-30 | Published 2026-05-30 | Updated 2026-06-01 | Assigner VulnCheck




MEDIUM: 6.9CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
MEDIUM: 6.2CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Product status

3.11
affected

Credits

Yair Rodríguez Aparicio finder

References

www.exploit-db.com/exploits/45762 (ExploitDB-45762) exploit

www.armcode.com/ (Official Product Homepage) product

www.armcode.com/downloads/arm-whois.exe (Product Reference) product

www.vulncheck.com/...s-denial-of-service-via-buffer-overflow (VulnCheck Advisory: Arm Whois 3.11 Denial of Service via Buffer Overflow) third-party-advisory

cve.org (CVE-2018-25423)

nvd.nist.gov (CVE-2018-25423)

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