How severe is CVE-2026-2906?

CVE-2026-2906 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-2026-2906 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-2906?

CVE-2026-2906 affects Tenda Hg9 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-2906?

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-2026-2906 have an EU (EUVD) identifier?

Yes. CVE-2026-2906 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7703.

When was CVE-2026-2906 published?

CVE-2026-2906 was published on 2026-02-22 and last updated on 2026-06-17.

CVE-2026-2906

CVE-2026-2906 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% (43rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-7703
Weakness: CWE-119
Affected product: Tenda Hg9 Firmware
Published: 2026-02-22
Last modified: 2026-06-17

Description

A security flaw has been discovered in Tenda HG9 300001138. Affected is an unknown function of the file /boaform/formSamba of the component Samba Configuration Endpoint. The manipulation of the argument sambaCap results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks.

Frequently asked questions

What is CVE-2026-2906?: A security flaw has been discovered in Tenda HG9 300001138. Affected is an unknown function of the file /boaform/formSamba of the component Samba Configuration Endpoint. The manipulation of the argument sambaCap results in stack-based buffer overflow. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks.
How severe is CVE-2026-2906?: CVE-2026-2906 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-2026-2906 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-2906?: CVE-2026-2906 affects Tenda Hg9 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-2906?: 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-2026-2906 have an EU (EUVD) identifier?: Yes. CVE-2026-2906 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7703.
When was CVE-2026-2906 published?: CVE-2026-2906 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…
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