What is CVE-2025-63154?

CVE-2025-63154 is a high-severity vulnerability in Totolink A7000r, classified under Stack-based Buffer Overflow. CVSS score: 7.5/10. Published 2025-11-10.

How severe is CVE-2025-63154?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Totolink A7000r

CVE-2025-63154

TOTOLink A7000R V9.1.0u.6115_B20201022 was discovered to contain a stack overflow in the addEffect parameter of the urldecode function. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted POST request.

Vulnerability class: Buffer Overflow

EPSS: 0.003 (24.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Totolink A7000r
Totolink A7000r_firmware — versions 9.1.0u.6115_b20201022
N/a — versions n/a

Weakness classification (CWE)

CWE-121 — Stack-based Buffer Overflow

References

cve@mitre.org (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2025-63154?: CVE-2025-63154 is a high-severity vulnerability in Totolink A7000r, classified under Stack-based Buffer Overflow. CVSS score: 7.5/10. Published 2025-11-10.
How severe is CVE-2025-63154?: High severity. CVSS v3 base score is 7.5 out of 10.