What is CVE-2025-63835?

CVE-2025-63835 is a high-severity vulnerability in Tenda Ac18, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2025-11-10.

How severe is CVE-2025-63835?

High severity. CVSS v3 base score is 8.8 out of 10.

Buffer overflow in Tenda Ac18

CVE-2025-63835

A stack-based buffer overflow vulnerability was discovered in Tenda AC18 v15.03.05.05_multi. The vulnerability exists in the guestSsid parameter of the /goform/WifiGuestSet interface. Remote attackers can exploit this vulnerability by send…

Vulnerability class: Buffer Overflow

EPSS: 0.006 (42.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Tenda Ac18
Tenda Ac18_firmware — versions 15.03.05.05
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write
CWE-121 — Stack-based Buffer Overflow

References

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

Frequently asked questions

What is CVE-2025-63835?: CVE-2025-63835 is a high-severity vulnerability in Tenda Ac18, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2025-11-10.
How severe is CVE-2025-63835?: High severity. CVSS v3 base score is 8.8 out of 10.