What’s Vulnerable › Vulnerabilities

CVE-2026-1409: Beetel 777VR1 UART excessive authentication

• Severity: medium (CVSS 4.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-01-26 · updated 2026-06-17
• Weakness: CWE-307

Description

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.

Affected products

• Beetel 777VR1: through 01.00.09_55

References

• https://gist.github.com/raghav20232023/19900b427445adf37f64ae953611bfce
• https://vuldb.com/?ctiid.342798
• https://vuldb.com/?id.342798
• https://vuldb.com/?submit.739399

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