CVE-2018-25317CWE-290

CVE-2018-25317

Critical · published April 30, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
50.3
In the wild
Unconfirmed
What it is

Tenda W3002R/A302/W309R wireless routers version V5.07.64_en contain a cookie session weakness vulnerability that allows unauthenticated attackers to modify DNS settings by exploiting insufficient session validation. Attackers can send GET requests to the /goform/AdvSetDns endpoint with a crafted admin language cookie to change primary and secondary DNS servers, redirecting user traffic to malicious DNS servers.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00651 · 50.3th percentile
Weakness
CWE-290 · Authentication Bypass by Spoofing
Published
2026-04-30T00:16Z
Affected products (3)
ProductVersionsFixed in
tenda/w309r_firmwareall versions—
tenda/a302_firmwareall versions—
tenda/w3002r_firmwareall versions—
References (2)
https://www.exploit-db.com/exploits/44380 · [email protected]https://www.vulncheck.com/advisories/tenda-w3002r-a302-w309r-64-en-cookie-session-weakness-dns-change · [email protected]
EPSS history
Timeline
  • 29 APR 19:24Z
    Tenda W3002R/A302/W309R V5.07.64_en Cookie Session Weakness DNS Change
    cvelistv5