Security readout for executives and security teams
Plain-English summary
CVE-2026-1411 affects Beetel 777VR1 routers running firmware 01.00.09 or 01.00.09_55. The issue involves improper access control on the device UART interface, requiring physical device access and difficult conditions. Business urgency is mainly for environments where attackers, contractors, or untrusted users could physically access routers.
Executive priority
Prioritize where affected routers protect sensitive networks or sit in accessible locations. This is not currently evidenced as a remotely exploitable mass-risk issue, but physical compromise could have high device impact. Address through inventory, physical security, and vendor remediation tracking.
Technical view
The reported flaw is in an unknown function of the Beetel 777VR1 UART Interface and maps to improper access control weaknesses. CVSS 3.1 is 6.1 with physical attack vector, high attack complexity, high privileges required, and high confidentiality, integrity, and availability impact if successful.
Likely exposure
Exposure appears limited to Beetel 777VR1 devices on firmware 01.00.09 and 01.00.09_55. Risk is highest for devices in shared spaces, branch offices, customer premises, labs, or poorly controlled network closets where physical access is plausible.
Exploitation context
VulDB states an exploit has been published and may be used, but the CVE is not listed as KEV in the provided data. The attack requires physical access to the device, high complexity, and high privileges, so it is not a typical remote internet-scale threat.
Researcher notes
Evidence names the UART Interface but not the exact vulnerable function. Vendor reportedly did not respond. Public exploit material is referenced, but this assessment does not validate it or provide usage details. Patch status is unclear in the provided sources.
Mitigation direction
- Inventory Beetel 777VR1 routers and record firmware versions.
- Restrict physical access to routers, wiring closets, and customer-premises equipment.
- Check Beetel or service-provider guidance for firmware updates or replacement options.
- Treat untrusted physically accessed devices as potentially compromised.
- Replace unsupported devices if vendor remediation remains unavailable.
Validation and detection
- Confirm whether any Beetel 777VR1 devices are deployed.
- Verify firmware is 01.00.09, 01.00.09_55, or another version.
- Review physical access controls around affected routers.
- Check vendor, ISP, or procurement channels for official remediation guidance.
- Document compensating controls where patch status is unknown.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-266: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCWE-284: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-1411 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R0.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
6.1MediumVector: CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
Source materials
- CVE List V5 sourceCVE List V5
- VDB-342800 | Beetel 777VR1 UART access controlCVE reference · vdb-entry, technical-description
- VDB-342800 | CTI Indicators (IOB, IOC, TTP)CVE reference · signature, permissions-required
- Submit #740674 | Beetel Beetel 777VR1 Broadband Router Firmware Versions: V01.00.09 / V01.00.09_55 CWE-284 — Improper Access ControlCVE reference · third-party-advisory
- https://gist.github.com/raghav20232023/ea6adcd6d1eca35683570a1094164bd3CVE reference · exploit
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Incorrect Privilege Assignment
Incorrect Privilege Assignment represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Improper Access Control
Improper Access Control represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.