What is CVE-2025-25662?

CVE-2025-25662 is a critical-severity vulnerability in Tenda O4, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2025-02-20.

How severe is CVE-2025-25662?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Buffer overflow in Tenda O4

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.

Vulnerability class: Buffer Overflow

EPSS: 0.004 (35.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Tenda O4 — versions 3.0
Tenda O4_firmware — versions 1.0.0.10\(2936\)
N/a — versions n/a

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

cve@mitre.org (Broken Link)

Frequently asked questions

What is CVE-2025-25662?: CVE-2025-25662 is a critical-severity vulnerability in Tenda O4, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 9.8/10. Published 2025-02-20.
How severe is CVE-2025-25662?: Critical severity. CVSS v3 base score is 9.8 out of 10.