Which versions of 777vr1 Firmware are affected by CVE-2026-1409?

CVE-2026-1409 is a low-severity vulnerability in Beetel 777VR1 (CVSS 2.0). The limited severity suggests constrained impact, typically requiring specific conditions or local access for exploitation.

Is there a public PoC exploit available for CVE-2026-1409?

Yes, a public proof-of-concept exploit is available for CVE-2026-1409. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-1409?

During next maintenance window: Apply vendor patches when convenient. Monitor vendor channels for updates.

777vr1 Firmware CVE-2026-1409

Q: What is the CVSS score of CVE-2026-1409?

CVE-2026-1409 has a CVSS 4.0 base score of 0.3 (Low). CVSS vector: CVSS:4.0/AV:P/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.0%.

LOW

Improper Restriction of Excessive Authentication Attempts (CWE-307)

2026-01-26 cna@vuldb.com

Information Disclosure 777vr1 Firmware

0.3

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

0.3 LOW

CVSS:4.0/AV:P/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:P/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Physical

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Lifecycle Timeline

CVSS changed

Apr 29, 2026 - 01:11 NVD

2.0 (LOW) 0.3 (LOW)

Analysis Generated

Mar 12, 2026 - 22:00 vuln.today

PoC Detected

Jan 30, 2026 - 20:27 vuln.today

Public exploit code

CVE Published

Jan 26, 2026 - 00:16 nvd

LOW 2.0

DescriptionCVE.org

A security vulnerability has been detected in Beetel 777VR1 up to 01.00.09/01.00.09_55. This issue affects some unknown processing of the component UART Interface. The manipulation leads to improper restriction of excessive authentication attempts. It is possible to launch the attack on the physical device. The attack's complexity is rated as high. The exploitability is assessed as difficult. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

AnalysisAI

A security vulnerability has been detected in Beetel 777VR1 up to 01.00.09/01.00.09_55. This issue affects some unknown processing of the component UART Interface. …

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Vulnerability AssessmentAI

Risk Assessment	CVSS 2.0 (LOW). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	An attacker could exploit this flaw, improper restriction of excessive authentication attempts.
Remediation	Monitor vendor advisories for a patch. Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

During next maintenance window: Apply vendor patches when convenient. …

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CVE-2026-1409 vulnerability details – vuln.today

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