CVE-2026-36615 — Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 exposes an undocumented /agileconfigreset endpoint that returns internal buffer contents to unauthenticated attackers on the adjacent network

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MEDIUM

Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 exposes an undocumented /agileconfigreset endpoint that returns internal buffer contents to unauthenticated attackers on the adjacent network

Published Jun 3, 2026

4.3

MEDIUM

CVSS 3.1

EPSS 0.24%

Description

Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 exposes an undocumented /agileconfigreset endpoint that returns internal buffer contents to unauthenticated attackers on the adjacent network.

Affected products

Remediation

No remediation recorded yet.

Metrics

0.24% 0.00243

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

EPSS probability 0.00243

Score over time

Jun–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	0.24% (0.00243)	14.11th	v5 (v2026.06.15)
Jun 15, 2026	0.17% (0.00166)	6.12th	v5 (v2026.06.15)
Jun 4, 2026	0.01% (0.00013)	2.40th	v4 (v2025.03.14)

Weaknesses (1)

CWE-200

Exposure of Sensitive Information

References (1)

https://github.com/Tymbark7372/MERCUSYS-AC12G/blob/master/advisories/CVE-2026-36615.md

Link	Providers	Tags
https://github.com/Tymbark7372/MERCUSYS-AC12G/blob/master/advisories/CVE-2026-36615.md

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner mitre

Published Jun 3, 2026

Updated Jun 3, 2026

Reserved Apr 6, 2026

Link CVE-2026-36615

CISA Vulnrichment

Updated Jun 3, 2026

NVD

Status Deferred

Modified Jul 22, 2026

Link CVE-2026-36615

Red Hat

Severity n/a

Public date n/a

Links CVE-2026-36615