How severe is CVE-2025-9778?

CVE-2025-9778 has a CVSS 3.x base score of 1.9, rated low severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2025-9778 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-9778?

CVE-2025-9778 affects Tenda W12 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-9778?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-9778 have an EU (EUVD) identifier?

Yes. CVE-2025-9778 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26339.

When was CVE-2025-9778 published?

CVE-2025-9778 was published on 2025-09-01 and last updated on 2026-06-17.

CVE-2025-9778

CVE-2025-9778 is a low-severity vulnerability in Tenda W12 Firmware with a CVSS 3.x base score of 1.9. 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-798.

Key facts

Severity: Low (CVSS 3.x base score 1.9)
CVSS v2: 0.8
CVSS v4: 0.9
EPSS exploit prediction: 0% (4th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-26339
Weakness: CWE-798
Affected product: Tenda W12 Firmware
Published: 2025-09-01
Last modified: 2026-06-17

Description

A security vulnerability has been detected in Tenda W12 up to 3.0.0.6(3948). Affected is an unknown function of the file /etc_ro/shadow of the component Administrative Interface. The manipulation leads to hard-coded credentials. An attack has to be approached locally. The complexity of an attack is rather high. The exploitability is told to be difficult. The exploit has been disclosed publicly and may be used.

Frequently asked questions

What is CVE-2025-9778?: A security vulnerability has been detected in Tenda W12 up to 3.0.0.6(3948). Affected is an unknown function of the file /etc_ro/shadow of the component Administrative Interface. The manipulation leads to hard-coded credentials. An attack has to be approached locally. The complexity of an attack is rather high. The exploitability is told to be difficult. The exploit has been disclosed publicly and may be used.
How severe is CVE-2025-9778?: CVE-2025-9778 has a CVSS 3.x base score of 1.9, rated low severity. It is exploitable over local access with high attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2025-9778 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (4th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-9778?: CVE-2025-9778 affects Tenda W12 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-9778?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-9778 have an EU (EUVD) identifier?: Yes. CVE-2025-9778 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26339.
When was CVE-2025-9778 published?: CVE-2025-9778 was published on 2025-09-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tenda:w12_firmware:3.0.0.6\(3948\):*:*:*:*:*:*:*

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