SEPTEMBER 19, 2026
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Case File

CVE-2026-31267

MEDIUM · CVSS 5.7 EPSS 0.20% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-09 · Last synced 2026-08-08

CyberRota Analysis

AI-Generated

The administrative web interface of Mercusys MW302R routers is susceptible to a stack buffer overflow, allowing authenticated attackers with administrative access to crash the system by sending specially crafted requests. This vulnerability can lead to a denial of service by manipulating control flow to execute arbitrary instructions. Organizations using these routers should prioritize patching this vulnerability to maintain system stability and security.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-31267
Severity
MEDIUM
CVSS
5.7
EPSS
0.20%

Original NVD Description

Mercusys MW302R MW302R(EU)_V1_1.4.10 Build 231023 is vulnerable to Buffer Overflow in the administrative web interface. A stack buffer overflow vulnerability in the administrative web interface allows an authenticated attacker with administrative privileges to trigger a system crash by sending a specially crafted request. The vulnerability results in denial of service through control flow manipulation to an arbitrary instruction address.