Vulnary
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Critical· 9.3

CVE-2018-25427

Arm Whois 3.11 contains a flaw that allows an attacker to run unauthorized commands on a system. This happens when the software receives an input that is too large in the IP address or domain fields.

publishedJun 1, 2026
last modifiedJul 22, 2026
sourcesNVD
severity · cvss
9.3
critical · how bad it is
exploitation · epss
<1%
57th percentile · chance of exploitation in 30 days
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
auto-deletes from the system
counting…on Sep 5, 2026

No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.

01

Who is affected

Users running Arm Whois version 3.11.

02

Real-world impact

A remote attacker could take control of the application and execute malicious code on the target machine by sending specially crafted, oversized data.

03

Why this severity

This vulnerability is rated as critical because it allows a remote attacker to execute arbitrary code without needing special privileges or user interaction.

04

What to do about it

no official fix yet

No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.

No fix documented in sources

05

Timeline

  1. Jun 1, 2026 · Jun 1, 2026
    Published
    Disclosed and added to the National Vulnerability Database.
  2. Jul 22, 2026 · 13d ago
    Advisory updated
    The NVD record was last revised.
06

How it’s attacked

Attack vectorNetwork (remote)
Attack complexityLow
Attack requirementsNone
Privileges requiredNone
User interactionNone needed
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
07

References & advisories

(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →