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Vulnerabilities

Vulnerability · CVE-2018-25317

Tenda W3002R/A302/W309R wireless routers version V5.07.64_en contain a cookie session weakness vulnerability that allows unauthenticated attackers to modify DNS settin…

Published Apr 29, 2026 · catalog updated Sep 30, 2026 · w309r firmware

Check if you run it

No confirmed exploitation is on record for CVE-2018-25317. EPSS is 0.65%. Act only if a listed version of w309r firmware is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.65%
Remediation
Advisory link
Affected products
cpe tenda/a302 firmware · cpe tenda/w3002r firmware · cpe tenda/w309r firmware

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe tenda/a302 firmware5.07.64_en
  • cpe tenda/w3002r firmware5.07.64_en
  • cpe tenda/w309r firmware5.07.64_en

How to fix CVE-2018-25317

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2018-25317. EPSS is 0.65%. Act only if a listed version of w309r firmware is installed.

Which versions are affected?

Compare what you have installed with tenda/a302 firmware 5.07.64_en; tenda/w3002r firmware 5.07.64_en; tenda/w309r firmware 5.07.64_en. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-290: Authentication Bypass by Spoofing. EPSS 0.65%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 29, 2026 · NIST NVD

    Detected

    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 malicio

  2. Sep 30, 2026 · NIST NVD

    Updated

    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 malicio

Sources

  • CVE.orgVulnerability recordCVE-2018-25317

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2018-25317

    30-day exploitation probability 0.65%

    first.org
  • NIST NVDVulnerability recordCVE-2018-25317

    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 endpoi

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 21, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.