What’s Vulnerable › Vulnerabilities
CVE-2026-12495: Stack-Based Buffer Overflow in the Mercusys MB115-4G
- Severity: medium (CVSS 5.3 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-07-27 · updated 2026-10-24
- Weakness: CWE-121
Description
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.
Affected products
- Mercusys MB115-4G: from 1.7.0 through 1.9.0
References
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