CVE-2026-1689

Name: CVE-2026-1689
Creator: NVD / NIST
Published: 2026-01-30T17:16:13.783+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 2.31%

Last modified Jun 17, 2026

CVE-2026-1689 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A vulnerability was detected in Tenda HG10 US_HG7_HG9_HG10re_300001138_en_xpon. The impacted element is the function checkUserFromLanOrWan of the file /boaform/admin/formLogin of the component Login Interface. EPSS estimates a 2.31% chance of exploitation in the next 30 days.

Description

A vulnerability was detected in Tenda HG10 US_HG7_HG9_HG10re_300001138_en_xpon. The impacted element is the function checkUserFromLanOrWan of the file /boaform/admin/formLogin of the component Login Interface. The manipulation of the argument Host results in command injection. The attack can be launched remotely. The exploit is now public and may be used.

Metrics

CVSS 3.1

7.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CVSS 4.0

5.5/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/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 Probability

2.31%

81.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Tenda	Hg10 Firmware	All versions

References

https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/Tenda/HG10/formLogin-Host-command.mdExploit, Third Party Advisory
https://github.com/SunnyYANGyaya/cuicuishark-sheep-fishIOT/blob/main/Tenda/HG10/formLogin-Host-command.md#pocExploit
https://vuldb.com/?ctiid.343483Permissions Required, VDB Entry
https://vuldb.com/?id.343483Third Party Advisory, VDB Entry
https://vuldb.com/?submit.741411Third Party Advisory, VDB Entry
https://www.tenda.com.cn/Product

Timeline

Published: Jan 30, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-1689?

How severe is CVE-2026-1689?

CVE-2026-1689 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 2.31% probability of exploitation in the next 30 days.

How do I fix CVE-2026-1689?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-1689?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST