CVE Catalog

CVE-2026-12495

MediumCVSS 5.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.25%

16th percentile - higher than 16% of all known CVEs

Summary

The Mercusys MB115-4G device contains a DoS vulnerability due to a stack buffer overflow in the http_gdpr_decrypt function of the web interface, exploitable by an unauthenticated attacker via a crafted request to /cgi/login.

Risk Assessment

An attacker could crash the httpd process, denying access to the device's administration panel.

Recommendation

Update the Mercusys MB115-4G firmware to the latest version provided by the manufacturer.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS