PT-2026-5155 · Intelbras · Intelbras Router Rf 301K

Kaio Amaral · Published 2026-01-28 · Updated 2026-01-28 · CVE-2020-36963

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Intelbras Router RF 301K version 1.1.2

Description An authentication bypass allows unauthenticated attackers to download router configuration files. This is achieved by sending a specific HTTP GET request to the endpoint '/cgi-bin/DownloadCfg/RouterCfm.cfg' to retrieve sensitive configuration data.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Missing Authentication

Weakness Enumeration

CWE-306

Related Identifiers

CVE-2020-36963

Affected Products

Intelbras Router Rf 301K

References · 4

• 🔥 https://exploit-db.com/exploits/49126 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-36963 · Security Note
• https://vulncheck.com/advisories/intelbras-router-rf-k-authentication-bypass · Note
• https://intelbras.com/pt-br · Note