What is CVE-2025-60340?

CVE-2025-60340 is a high-severity vulnerability in Tenda Ac6, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2025-10-22.

How severe is CVE-2025-60340?

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

Buffer overflow in Tenda Ac6

CVE-2025-60340

Multiple buffer overflows in the SetClientState function of Tenda AC6 v.15.03.06.50 allows attackers to cause a Denial of Service (DoS) via injecting a crafted payload into the limitSpeed, deviceId, and limitSpeedUp parameters.

Vulnerability class: Buffer Overflow

EPSS: 0.004 (30.7th 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

Tenda Ac6 — versions 2.0
Tenda Ac6_firmware — versions 15.03.06.50
N/a — versions n/a

Weakness classification (CWE)

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

References

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

Frequently asked questions

What is CVE-2025-60340?: CVE-2025-60340 is a high-severity vulnerability in Tenda Ac6, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2025-10-22.
How severe is CVE-2025-60340?: High severity. CVSS v3 base score is 7.5 out of 10.