Mercusys MW301R 1.0.2 Build 190726 Rel.59423n Web Interface code password recovery

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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2.6$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Mercusys MW301R 1.0.2 Build 190726 Rel.59423n. This impacts an unknown function of the component Web Interface. Executing a manipulation of the argument code can lead to password recovery. This vulnerability is handled as CVE-2025-7881. The attack can be executed remotely. Additionally, an exploit exists. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability was found in Mercusys MW301R 1.0.2 Build 190726 Rel.59423n. It has been declared as problematic. This vulnerability affects an unknown functionality of the component Web Interface. The manipulation of the argument code with an unknown input leads to a password recovery vulnerability. The CWE definition for the vulnerability is CWE-640. The product contains a mechanism for users to recover or change their passwords without knowing the original password, but the mechanism is weak. As an impact it is known to affect integrity.

The advisory is shared for download at github.com. This vulnerability was named CVE-2025-7881. The exploitation appears to be easy. The attack can be initiated remotely. The exploitation needs additional levels of successful authentication. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1552.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-22005). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 2.7
VulDB Meta Temp Score: 2.6

VulDB Base Score: 2.7
VulDB Temp Score: 2.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 2.7
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Password recovery
CWE: CWE-640
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

07/19/2025 Advisory disclosed
07/19/2025 +0 days VulDB entry created
07/20/2025 +1 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2025-7881 (🔒)
GCVE (CVE): GCVE-0-2025-7881
GCVE (VulDB): GCVE-100-316996
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 07/19/2025 09:49
Updated: 07/20/2025 14:14
Changes: 07/19/2025 09:49 (56), 07/20/2025 13:08 (30), 07/20/2025 14:14 (1)
Complete: 🔍
Submitter: RaulPACXXX
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #611328: Mercusys Router MW301R 1.0.2 Build 190726 Rel.59423n (4252) Authentication Bypass Using an Alternate Path or Channel (by RaulPACXXX)

Once again VulDB remains the best source for vulnerability data.

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