CVE-2023-52162Public exploitNetwork attack vector

Authenticated code execution via oversized ACL name

Published Jun 3, 2024 · Updated Feb 13, 2025

Stack-based buffer overflow in MERCUSYS MW325R EU V3 firmware 1.11.0 allows remote authenticated users to execute arbitrary code. The Access Control device-add handler fails to bound the name parameter, so an oversized value overwrites the saved ARM program counter. An authenticated management session and a valid Referer header are required; successful exploitation controls the router, while malformed attempts reboot it.

CVSS severity6.7
Medium
EPSS probability0.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in MERCUSYS MW325R EU V3 firmware 1.11.0 allows remote authenticated users to execute arbitrary code. The Access Control device-add handler fails to bound the name parameter, so an oversized value overwrites the saved ARM program counter. An authenticated management session and a valid Referer header are required; successful exploitation controls the router, while malformed attempts reboot it.

The record

CVE
CVE-2023-52162
Published
Jun 3, 2024
Updated
Feb 13, 2025
Vendor
MERCUSYS
Product
MW325R
Classifications
CWE-121, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 3, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.11.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

MERCUSYS · MW325Rversion=1.11.0

Published CVSS scores

6.7CISA ADP VulnrichmentCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-121Stack-based Buffer Overflow
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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