SEPTEMBER 17, 2026
Live Feed
Back to database
Case File

CVE-2026-63586

CRITICAL · CVSS 9.8 EPSS 0.52%

Source: NVD + CISA KEV + EPSS · Published 2026-08-25 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

The vulnerability exists in the web-based management interface that utilizes a modified uhttpd server, where unsanitized HTTP Basic Authentication usernames are passed directly into shell commands. This flaw allows unauthenticated attackers with network access to execute arbitrary commands with root privileges by crafting malicious usernames. Organizations using affected devices should prioritize patching this critical vulnerability to prevent potential exploitation and unauthorized access.

CVE
CVE-2026-63586
Severity
CRITICAL
CVSS
9.8
EPSS
0.52%

Original NVD Description

The web-based management interface uses a modified uhttpd server with CGI shell scripts. The HTTP Basic Authentication username, taken directly from the Authorization header without sanitization, is inserted into a shell command string executed via the system() function. By submitting a specially crafted username containing shell metacharacters, an unauthenticated attacker with network access to the device can escape the command context and execute arbitrary commands with root privileges.