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CVE-2020-36963

HIGH

7.5

Description

Intelbras Router RF 301K firmware version 1.1.2 contains an authentication bypass vulnerability that allows unauthenticated attackers to download router configuration files. Attackers can send a specific HTTP GET request to /cgi-bin/DownloadCfg/RouterCfm.cfg to retrieve sensitive router configuration without authentication.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published1/28/2026

Last Modified1/29/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-306

References

https://www.exploit-db.com/exploits/49126(disclosure@vulncheck.com)

https://www.intelbras.com/pt-br/(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/intelbras-router-rf-k-authentication-bypass(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/49126(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.