CVE-2026-36618: Infoleak

Published Jun 3, 2026
·
Updated

Mercusys AC12G (EU) V1 with firmware AC12G(EU)V1200909 responds to version.bind CHAOS TXT queries, disclosing the DNS resolver software version (unbound 1.22.0), aiding targeted attacks against known vulnerabilities.

Affected Software

2 affected components
MERCUSYS AC12G (EU) V1=AC12G(EU)_V1_200909
Nlnet Labs Unbound=1.22.0

Event History

Jun 3, 2026
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·06:16 PM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2026-36618?

The severity of CVE-2026-36618 is rated as medium with a CVSS score of 4.3.

2

How do I fix CVE-2026-36618?

To fix CVE-2026-36618, update your Mercusys AC12G (EU) V1 firmware to the latest version provided by the manufacturer.

3

What type of information does CVE-2026-36618 leak?

CVE-2026-36618 leaks the DNS resolver software version, specifically unbound 1.22.0, which can assist attackers in exploiting known vulnerabilities.

4

Which device is affected by CVE-2026-36618?

CVE-2026-36618 affects the Mercusys AC12G (EU) V1 with the specified firmware version.

5

Can CVE-2026-36618 lead to further attacks?

Yes, CVE-2026-36618 can lead to targeted attacks against the device due to the disclosure of the DNS resolver software version.

Contact

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