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CVE-2026-1409
Beetel 777VR1 UART excessive authentication
Low1.0EPSS 0.38%
- Published
- Updated
- Reserved
- Assigned by
- VulDB
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| VulDBCNA (assigner) | 4.0 | Low1.0 | 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 |
| VulDBCNA (assigner) | 3.1 | Low2.0 | CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R |
| VulDBCNA (assigner) | 3.0 | Low2.0 | CVSS:3.0/AV:P/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R |
| VulDBCNA (assigner) | 2.0 | Low1.2 | AV:L/AC:H/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:UR |
| NVDNVD · Analyzed | 4.0 | Low0.3 | 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 in 30 days)
- 0.38% · top 68% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: partial
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 1.0.
Weakness
Affected products
References (4)
- VDB-342798 | Beetel 777VR1 UART excessive authentication (opens in a new tab)vdb-entrytechnical-description
- VDB-342798 | CTI Indicators (IOB, IOC, TTP) (opens in a new tab)signaturepermissions-required
- Submit #739399 | Beetel Beetel 777VR1 Broadband Router Firmware Version: V01.00.09 / V01.00.09_55 CWE-307 Improper Restriction - Excessive Authentication Attempts (opens in a new tab)third-party-advisory
- https://gist.github.com/raghav20232023/19900b427445adf37f64ae953611bfce (opens in a new tab)exploit
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-1409)Record last updated .