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TI-2020-19098 Aliases CVE-2020-36963GHSA-mgpr-67wh-564q

Intelbras Router RF 301K 1.1.2 - Authentication Bypass

Priority HIGH 77CWE-306Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00409 35th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
IntelbrasIntelbras Router RF 301Kfirmware version 1.1.2—No fix listedCNA
  • Intelbras Router RF 301K VendorIntelbras Affected firmware version 1.1.2 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-36963
  2. 2026-10-03 Alias added: GHSA-mgpr-67wh-564q

References

Exploit 1

Other 1

  • TI-2025-19238 An issue in Intelbras RX1500 v2.2.9 and RX3000 v1.0.11 allows unauthenticated attackers… CVSS 3.1CRITICAL 9.8
  • TI-2025-19237 An access control issue in Intelbras RX1500 v2.2.9 and RX3000 v1.0.11 allows… CVSS 3.1CRITICAL 9.8
  • TI-2019-15525 IntelBras Telefone IP TIP200/200 LITE Arbitrary File Read via dumpConfigFile CVSS 4.0HIGH 8.7
  • TI-2017-10965 Intelbras WRN 150 devices allow remote attackers to read the configuration file, and… CVSS 3.0CRITICAL 9.8
  • TI-2022-18943 Intelbras WiFiber 120AC inMesh before 1-1-220826 allows command injection by… CVSS 3.1HIGH 8.8
  • TI-2025-35209 Intelbras IWR 3000N 1.9.8 exposes the Wi-Fi password in plaintext via the /api/wireless… CVSS 3.1HIGH 8.4
See all 60 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences