How severe is CVE-2026-2905?

CVE-2026-2905 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-2905 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-2905?

CVE-2026-2905 affects Tenda Hg9 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-2905?

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-2026-2905 have an EU (EUVD) identifier?

Yes. CVE-2026-2905 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7548.

When was CVE-2026-2905 published?

CVE-2026-2905 was published on 2026-02-22 and last updated on 2026-06-17.

CVE-2026-2905

CVE-2026-2905 is a high-severity vulnerability in Tenda Hg9 Firmware with a CVSS 3.x base score of 8.8. 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-119.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 9.0
CVSS v4: 7.4
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-7548
Weakness: CWE-119
Affected product: Tenda Hg9 Firmware
Published: 2026-02-22
Last modified: 2026-06-17

Description

A vulnerability was identified in Tenda HG9 300001138. This impacts an unknown function of the file /boaform/formWlanSetup of the component Wireless Configuration Endpoint. The manipulation of the argument ssid leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit is publicly available and might be used.

Frequently asked questions

What is CVE-2026-2905?: A vulnerability was identified in Tenda HG9 300001138. This impacts an unknown function of the file /boaform/formWlanSetup of the component Wireless Configuration Endpoint. The manipulation of the argument ssid leads to stack-based buffer overflow. The attack may be initiated remotely. The exploit is publicly available and might be used.
How severe is CVE-2026-2905?: CVE-2026-2905 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-2905 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-2905?: CVE-2026-2905 affects Tenda Hg9 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-2905?: 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-2026-2905 have an EU (EUVD) identifier?: Yes. CVE-2026-2905 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7548.
When was CVE-2026-2905 published?: CVE-2026-2905 was published on 2026-02-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tenda:hg9_firmware:300001138:*:*:*:*:*:*:*

More vulnerabilities in Tenda Hg9 Firmware

CVE-2026-2910 — High (CVSS 8.8): A flaw has been found in Tenda HG9 300001138. This vulnerability affects unknown code of the file /boaform/formPing6.…
CVE-2026-2909 — High (CVSS 8.8): A vulnerability was detected in Tenda HG9 300001138. This affects an unknown part of the file /boaform/formPing of the…
CVE-2026-2908 — High (CVSS 8.8): A security vulnerability has been detected in Tenda HG9 300001138. Affected by this issue is some unknown functionality…
CVE-2026-2907 — High (CVSS 8.8): A weakness has been identified in Tenda HG9 300001138. Affected by this vulnerability is an unknown functionality of…
CVE-2026-2906 — High (CVSS 8.8): A security flaw has been discovered in Tenda HG9 300001138. Affected is an unknown function of the file…
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