How severe is CVE-2025-25662?

CVE-2025-25662 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-25662 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-25662?

CVE-2025-25662 affects Tenda O4 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-25662?

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

Does CVE-2025-25662 have an EU (EUVD) identifier?

Yes. CVE-2025-25662 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-4503.

When was CVE-2025-25662 published?

CVE-2025-25662 was published on 2025-02-20 and last updated on 2026-06-17.

CVE-2025-25662

CVE-2025-25662 is a critical-severity vulnerability in Tenda O4 Firmware with a CVSS 3.x base score of 9.8. 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-120.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-4503
Weakness: CWE-120
Affected product: Tenda O4 Firmware
Published: 2025-02-20
Last modified: 2026-06-17

Description

Tenda O4 V3.0 V1.0.0.10(2936) is vulnerable to Buffer Overflow in the function SafeSetMacFilter of the file /goform/setMacFilterList via the argument remark/type/time.

Frequently asked questions

What is CVE-2025-25662?: Tenda O4 V3.0 V1.0.0.10(2936) is vulnerable to Buffer Overflow in the function SafeSetMacFilter of the file /goform/setMacFilterList via the argument remark/type/time.
How severe is CVE-2025-25662?: CVE-2025-25662 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-25662 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-25662?: CVE-2025-25662 affects Tenda O4 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-25662?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-25662 have an EU (EUVD) identifier?: Yes. CVE-2025-25662 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-4503.
When was CVE-2025-25662 published?: CVE-2025-25662 was published on 2025-02-20 and last updated on 2026-06-17.

References

https://github.com/jangfan/my-vuln/blob/main/Tenda/O4V3/setMacFilterList.md

Affected products (1)

cpe:2.3:o:tenda:o4_firmware:1.0.0.10\(2936\):*:*:*:*:*:*:*

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