How severe is CVE-2025-15234?

CVE-2025-15234 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-2025-15234 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-15234?

CVE-2025-15234 affects Tenda M3 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-15234?

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-2025-15234 have an EU (EUVD) identifier?

Yes. CVE-2025-15234 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-205698.

When was CVE-2025-15234 published?

CVE-2025-15234 was published on 2025-12-30 and last updated on 2026-06-17.

CVE-2025-15234

CVE-2025-15234 is a high-severity vulnerability in Tenda M3 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: 2% (83rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-205698
Weakness: CWE-119
Affected product: Tenda M3 Firmware
Published: 2025-12-30
Last modified: 2026-06-17

Description

A weakness has been identified in Tenda M3 1.0.0.13(4903). Impacted is the function formSetRemoteInternetLanInfo of the file /goform/setInternetLanInfo. This manipulation of the argument portIp/portMask/portGateWay/portDns/portSecDns causes heap-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks.

Frequently asked questions

What is CVE-2025-15234?: A weakness has been identified in Tenda M3 1.0.0.13(4903). Impacted is the function formSetRemoteInternetLanInfo of the file /goform/setInternetLanInfo. This manipulation of the argument portIp/portMask/portGateWay/portDns/portSecDns causes heap-based buffer overflow. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks.
How severe is CVE-2025-15234?: CVE-2025-15234 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-2025-15234 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-15234?: CVE-2025-15234 affects Tenda M3 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-15234?: 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-2025-15234 have an EU (EUVD) identifier?: Yes. CVE-2025-15234 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-205698.
When was CVE-2025-15234 published?: CVE-2025-15234 was published on 2025-12-30 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tenda:m3_firmware:1.0.0.13\(4903\):*:*:*:*:*:*:*

More vulnerabilities in Tenda M3 Firmware

CVE-2023-51094 — Critical (CVSS 9.8): Tenda M3 V1.0.0.12(4856) was discovered to contain a Command Execution vulnerability via the function TendaTelnet.
CVE-2023-51093 — Critical (CVSS 9.8): Tenda M3 V1.0.0.12(4856) was discovered to contain a stack overflow via the function fromSetLocalVlanInfo.
CVE-2023-51092 — Critical (CVSS 9.8): Tenda M3 V1.0.0.12(4856) was discovered to contain a stack overflow via the function upgrade.
CVE-2023-51091 — Critical (CVSS 9.8): Tenda M3 V1.0.0.12(4856) was discovered to contain a stack overflow via the function R7WebsSecurityHandler.
CVE-2023-51090 — Critical (CVSS 9.8): Tenda M3 V1.0.0.12(4856) was discovered to contain a stack overflow via the function formGetWeiXinConfig.
CVE-2023-51095 — Critical (CVSS 9.8): Tenda M3 V1.0.0.12(4856) was discovered to contain a stack overflow via the function formDelWlRfPolicy.

All CVEs affecting Tenda M3 Firmware →

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