How severe is CVE-2026-1689?

CVE-2026-1689 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-1689 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-1689?

CVE-2026-1689 affects Tenda Hg10 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-1689?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-1689 have an EU (EUVD) identifier?

Yes. CVE-2026-1689 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5020.

When was CVE-2026-1689 published?

CVE-2026-1689 was published on 2026-01-30 and last updated on 2026-06-17.

CVE-2026-1689

CVE-2026-1689 is a high-severity vulnerability in Tenda Hg10 Firmware with a CVSS 3.x base score of 7.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-74.

Key facts

Severity: High (CVSS 3.x base score 7.3)
CVSS v2: 7.5
CVSS v4: 5.5
EPSS exploit prediction: 3% (83rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-5020
Weakness: CWE-74
Affected product: Tenda Hg10 Firmware
Published: 2026-01-30
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-1689?: 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.
How severe is CVE-2026-1689?: CVE-2026-1689 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-1689 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-1689?: CVE-2026-1689 affects Tenda Hg10 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-1689?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-1689 have an EU (EUVD) identifier?: Yes. CVE-2026-1689 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-5020.
When was CVE-2026-1689 published?: CVE-2026-1689 was published on 2026-01-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tenda:hg10_firmware:-:*:*:*:*:*:*:*

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CVE-2026-6988 — High (CVSS 8.8): A flaw has been found in Tenda HG10 HG7_HG9_HG10re_300001138_en_xpon. This issue affects the function formRoute of the…
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