CVE-2026-12495
Medium
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.
SeverityMedium
CVSS5.3
Exploit probability—
ProductMB115-4G
PublishedJul 27, 2026
First seenJul 27, 2026
Weakness typeCWE-121CWE-121
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Mercusys MB115-4G | 1.7.0 ≤ v ≤ 1.9.0 | — |
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