Improper Authentication Management in Beetel 777VR1 Broadband Router
CVE-2026-1409

1LOW

Key Information:

Vendor

Beetel

Status
777vr1
Vendor
CVE Published:
25 January 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-1409?

A security issue has been discovered in Beetel 777VR1 where the UART Interface's handling of authentication attempts is improperly managed. This flaw allows for excessive authentication attempts, potentially opening the door for unauthorized access. Attackers can exploit this vulnerability by directly interfacing with the physical device. The complexity of launching an attack is rated as high, and despite a public disclosure of the exploit, the vendor has not provided any response or mitigation.

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Affected Version(s)

777VR1 01.00.09

777VR1 01.00.09_55

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-1409 - Proof of Concept

References

https://vuldb.com/?id.342798
vdb-entry
https://vuldb.com/?ctiid.342798
signaturepermissions-required
https://vuldb.com/?submit.739399
third-party-advisory

CVSS V4

Score:
1
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Physical
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

raghav_2026 (VulDB User)
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