CVE-2026-12495

unknowncovered by 1 sourcefirst seen 2026-07-27

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.

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Exploitation outlook

Low exploitation risk0.16% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 6% of all EPSS-scored CVEs.

Advisory coverage (1)

unknownCVE-2026-12495: Denial-of-service (DoS) vulnerability due to a stack buffer overflow in the http_gdpr_decrypt …nvd · 2026-07-27

External references

NVD record for CVE-2026-12495

CVE.org record

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