CVE-2018-25423 — Arm Whois 3.11 Denial of Service via Buffer Overflow

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MEDIUM

Arm Whois 3.11 Denial of Service via Buffer Overflow

Published May 30, 2026

6.9

MEDIUM

CVSS 4.0

EPSS 0.14%

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.

Affected products

Vendor Armcode Product Arm Whois Default
n/a
- Version
  3.11
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Armcode

Arm Whois

n/a

Version	Status	Constraints
3.11	affected	-

Remediation

No remediation recorded yet.

Metrics

0.14% 0.00140

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.

EPSS probability 0.00140

Score over time

May–Oct 2026

EPSS v4
EPSS v5

Percentile over time

EPSS v4
EPSS v5

Table of values (3 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 2, 2026	0.14% (0.00140)	2.79th	v5 (v2026.06.15)
Jun 15, 2026	0.14% (0.00140)	3.60th	v5 (v2026.06.15)
May 31, 2026	0.01% (0.00012)	1.68th	v4 (v2025.03.14)

Weaknesses (1)

CWE-120

Classic Buffer Overflow

References (4)

http://www.armcode.com/
product
http://www.armcode.com/downloads/arm-whois.exe
product
https://www.exploit-db.com/exploits/45762
exploit
https://www.vulncheck.com/advisories/arm-whois-denial-of-service-via-buffer-overflow
third-party-advisory

Link	Providers	Tags
http://www.armcode.com/		product
http://www.armcode.com/downloads/arm-whois.exe		product
https://www.exploit-db.com/exploits/45762		exploit
https://www.vulncheck.com/advisories/arm-whois-denial-of-service-via-buffer-overflow		third-party-advisory