What is CVE-2018-25318?

CVE-2018-25318 is a critical-severity vulnerability in Tenda A300, classified under Authentication Bypass by Spoofing. CVSS score: 9.8/10. Published 2026-04-29.

How severe is CVE-2018-25318?

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

Vulnerability in Tenda A300

CVE-2018-25318

Tenda FH303/A300 firmware V5.07.68_EN contains a session weakness vulnerability that allows unauthenticated attackers to modify DNS settings by exploiting insufficient cookie validation. Attackers can send GET requests to the /goform/AdvSe…

EPSS: 0.002 (38.9th 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 A300
Tenda A300_firmware — versions 5.07.68_en
Tenda Fh303
Tenda Fh303/a300 — versions 5.07.68
Tenda Fh303_firmware — versions 5.07.68_en

Weakness classification (CWE)

CWE-290 — Authentication Bypass by Spoofing

References

ExploitDB-44381 (Exploit, exploit, Third Party Advisory, VDB Entry)
VulnCheck Advisory: Tenda FH303/A300 V5.07.68_EN Cookie Session Weakness DNS Change (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2018-25318?: CVE-2018-25318 is a critical-severity vulnerability in Tenda A300, classified under Authentication Bypass by Spoofing. CVSS score: 9.8/10. Published 2026-04-29.
How severe is CVE-2018-25318?: Critical severity. CVSS v3 base score is 9.8 out of 10.