Mercku M6a up to 2.1.0 Session Token authentication bypass

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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2.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Mercku M6a up to 2.1.0. Affected is an unknown function of the component Session Token Handler. Performing a manipulation results in authentication bypass. This vulnerability is known as CVE-2025-62772. Access to the local network is required for this attack. Furthermore, an exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Mercku M6a up to 2.1.0. This affects an unknown functionality of the component Session Token Handler. The manipulation with an unknown input leads to a authentication bypass vulnerability. CWE is classifying the issue as CWE-305. The authentication algorithm is sound, but the implemented mechanism can be bypassed as the result of a separate weakness that is primary to the authentication error. This is going to have an impact on integrity. The summary by CVE is:

On Mercku M6a devices through 2.1.0, session tokens remain valid for at least months in some cases.

It is possible to read the advisory at seclists.org. This vulnerability is uniquely identified as CVE-2025-62772 since 10/22/2025. The exploitability is told to be difficult. The attack can only be done within the local network. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available.

The exploit is shared for download at blog.nullvoid.me. It is declared as proof-of-concept.

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 CNNVD (CNNVD-202510-3180). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.1
VulDB Meta Temp Score: 2.9

VulDB Base Score: 3.1
VulDB Temp Score: 2.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 3.1
CNA Vector (MITRE): 🔒

CVSSv2info

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

Exploitinginfo

Class: Authentication bypass
CWE: CWE-305 / CWE-287
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

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

10/22/2025 Advisory disclosed
10/22/2025 +0 days CVE reserved
10/22/2025 +0 days VulDB entry created
10/24/2025 +2 days VulDB entry last update

Sourcesinfo

Advisory: seclists.org
Status: Not defined

CVE: CVE-2025-62772 (🔒)
GCVE (CVE): GCVE-0-2025-62772
GCVE (VulDB): GCVE-100-329295
CNNVD: CNNVD-202510-3180 - Mercku M6a 安全漏洞

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 10/22/2025 09:33
Updated: 10/24/2025 06:38
Changes: 10/22/2025 09:33 (64), 10/24/2025 06:38 (6)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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