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10 vulnerabilities by Mercusys
CVE-2026-12495 (GCVE-0-2026-12495)
Vulnerability from nvd – Published: 2026-07-27 10:32 – Updated: 2026-07-28 06:49
VLAI
EPSS
VEX
Title
Stack-Based Buffer Overflow in the Mercusys MB115-4G
Summary
Denial-of-service (DoS) vulnerability due to a stack buffer overflow in the http_gdpr_decrypt function of the Mercusys MB115-4G device's web interface. An unauthenticated attacker could exploit this vulnerability by sending a specially crafted request to the /cgi/login endpoint, causing memory corruption and the httpd process to crash, resulting in a denial of service for the web administration service.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-27 14:40 UTC
CWE
- CWE-121 - Stack-based buffer overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.incibe.es/en/incibe-cert/notices/avis… | patch |
Impacted products
Date Public
2026-07-27 10:17
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CVE-2025-7882 (GCVE-0-2025-7882)
Vulnerability from nvd – Published: 2025-07-20 10:14 – Updated: 2025-07-21 14:37
VLAI
EPSS
VEX
Title
Mercusys MW301R Login excessive authentication
Summary
A vulnerability was found in Mercusys MW301R 1.0.2 Build 190726 Rel.59423n. It has been rated as problematic. This issue affects some unknown processing of the component Login. The manipulation leads to improper restriction of excessive authentication attempts. The attack can only be initiated within the local network. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-07-21 14:37 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.316997 | vdb-entry |
| https://vuldb.com/?ctiid.316997 | signaturepermissions-required |
| https://vuldb.com/?submit.611431 | third-party-advisory |
| https://github.com/RaulPazemecxas/PoCVulDb/blob/m… | broken-linkexploit |
Impacted products
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CVE-2025-7881 (GCVE-0-2025-7881)
Vulnerability from nvd – Published: 2025-07-20 09:44 – Updated: 2025-07-21 14:38
VLAI
EPSS
VEX
Title
Mercusys MW301R Web Interface password recovery
Summary
A vulnerability was found in Mercusys MW301R 1.0.2 Build 190726 Rel.59423n. It has been declared as problematic. This vulnerability affects unknown code of the component Web Interface. The manipulation of the argument code leads to weak password recovery. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-07-21 14:38 UTC
CWE
- CWE-640 - Weak Password Recovery
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.316996 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.316996 | signaturepermissions-required |
| https://vuldb.com/?submit.611328 | third-party-advisory |
| https://github.com/RaulPazemecxas/PoCVulDb/blob/m… | broken-linkexploit |
Impacted products
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CVE-2023-52162 (GCVE-0-2023-52162)
Vulnerability from nvd – Published: 2024-06-03 19:14 – Updated: 2025-02-13 15:46
VLAI
EPSS
VEX
Summary
Mercusys MW325R EU V3 (Firmware MW325R(EU)_V3_1.11.0 Build 221019) is vulnerable to a stack-based buffer overflow, which could allow an attacker to execute arbitrary code. Exploiting the vulnerability requires authentication.
Severity
6.7 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-06 18:10 UTC
CWE
- n/a
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| mercusys | mw325r_eu_v3 |
Affected:
1.11.0
cpe:2.3:a:mercusys:mw325r_eu_v3:1.11.0:*:*:*:*:*:*:* |
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CVE-2023-46297 (GCVE-0-2023-46297)
Vulnerability from nvd – Published: 2024-05-29 15:35 – Updated: 2025-02-13 15:46
VLAI
EPSS
VEX
Summary
An issue was discovered on Mercusys MW325R EU V3 MW325R(EU)_V3_1.11.0 221019 devices. A WAN attacker can make the admin interface unreachable/invisible via an unauthenticated HTTP request. Verification of the data sent by the user does not occur. The web server does not crash, but the admin interface becomes invisible, because the files necessary to display the content are no longer available. A reboot of the router is typically required to restore the correct behavior.
Severity
5.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-08-22 18:57 UTC
CWE
- n/a
- CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| mercusys | mw325r_eu_v3 |
Affected:
1.11.0
cpe:2.3:a:mercusys:mw325r_eu_v3:1.11.0:*:*:*:*:*:*:* |
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CVE-2026-12495 (GCVE-0-2026-12495)
Vulnerability from cvelistv5 – Published: 2026-07-27 10:32 – Updated: 2026-07-28 06:49
VLAI
EPSS
VEX
Title
Stack-Based Buffer Overflow in the Mercusys MB115-4G
Summary
Denial-of-service (DoS) vulnerability due to a stack buffer overflow in the http_gdpr_decrypt function of the Mercusys MB115-4G device's web interface. An unauthenticated attacker could exploit this vulnerability by sending a specially crafted request to the /cgi/login endpoint, causing memory corruption and the httpd process to crash, resulting in a denial of service for the web administration service.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-27 14:40 UTC
CWE
- CWE-121 - Stack-based buffer overflow
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.incibe.es/en/incibe-cert/notices/avis… | patch |
Impacted products
Date Public
2026-07-27 10:17
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CVE-2025-7882 (GCVE-0-2025-7882)
Vulnerability from cvelistv5 – Published: 2025-07-20 10:14 – Updated: 2025-07-21 14:37
VLAI
EPSS
VEX
Title
Mercusys MW301R Login excessive authentication
Summary
A vulnerability was found in Mercusys MW301R 1.0.2 Build 190726 Rel.59423n. It has been rated as problematic. This issue affects some unknown processing of the component Login. The manipulation leads to improper restriction of excessive authentication attempts. The attack can only be initiated within the local network. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-07-21 14:37 UTC
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.316997 | vdb-entry |
| https://vuldb.com/?ctiid.316997 | signaturepermissions-required |
| https://vuldb.com/?submit.611431 | third-party-advisory |
| https://github.com/RaulPazemecxas/PoCVulDb/blob/m… | broken-linkexploit |
Impacted products
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CVE-2025-7881 (GCVE-0-2025-7881)
Vulnerability from cvelistv5 – Published: 2025-07-20 09:44 – Updated: 2025-07-21 14:38
VLAI
EPSS
VEX
Title
Mercusys MW301R Web Interface password recovery
Summary
A vulnerability was found in Mercusys MW301R 1.0.2 Build 190726 Rel.59423n. It has been declared as problematic. This vulnerability affects unknown code of the component Web Interface. The manipulation of the argument code leads to weak password recovery. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-07-21 14:38 UTC
CWE
- CWE-640 - Weak Password Recovery
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.316996 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.316996 | signaturepermissions-required |
| https://vuldb.com/?submit.611328 | third-party-advisory |
| https://github.com/RaulPazemecxas/PoCVulDb/blob/m… | broken-linkexploit |
Impacted products
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"description": "Weak Password Recovery",
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CVE-2023-52162 (GCVE-0-2023-52162)
Vulnerability from cvelistv5 – Published: 2024-06-03 19:14 – Updated: 2025-02-13 15:46
VLAI
EPSS
VEX
Summary
Mercusys MW325R EU V3 (Firmware MW325R(EU)_V3_1.11.0 Build 221019) is vulnerable to a stack-based buffer overflow, which could allow an attacker to execute arbitrary code. Exploiting the vulnerability requires authentication.
Severity
6.7 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-06-06 18:10 UTC
CWE
- n/a
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| mercusys | mw325r_eu_v3 |
Affected:
1.11.0
cpe:2.3:a:mercusys:mw325r_eu_v3:1.11.0:*:*:*:*:*:*:* |
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CVE-2023-46297 (GCVE-0-2023-46297)
Vulnerability from cvelistv5 – Published: 2024-05-29 15:35 – Updated: 2025-02-13 15:46
VLAI
EPSS
VEX
Summary
An issue was discovered on Mercusys MW325R EU V3 MW325R(EU)_V3_1.11.0 221019 devices. A WAN attacker can make the admin interface unreachable/invisible via an unauthenticated HTTP request. Verification of the data sent by the user does not occur. The web server does not crash, but the admin interface becomes invisible, because the files necessary to display the content are no longer available. A reboot of the router is typically required to restore the correct behavior.
Severity
5.1 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-08-22 18:57 UTC
CWE
- n/a
- CWE-755 - Improper Handling of Exceptional Conditions
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| mercusys | mw325r_eu_v3 |
Affected:
1.11.0
cpe:2.3:a:mercusys:mw325r_eu_v3:1.11.0:*:*:*:*:*:*:* |
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"problemTypes": [
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