CVE-2018-25318

CRITICAL

9.8

Description

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/AdvSetDns endpoint with a crafted admin cookie to change DNS servers and redirect user traffic to malicious sites.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published4/29/2026

Last Modified4/30/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-290

References

https://www.exploit-db.com/exploits/44381(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/tenda-fh303-a300-68-en-cookie-session-weakness-dns-change(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

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