Tenda W3002R/A302/W309R V5.07.64_en Cookie Session Weakness DNS Change
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-290.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Tenda | W3002R | 5.07.64 | — | No fix listed | CNA |
| Tenda | A302 | 5.07.64 | — | No fix listed | CNA |
| Tenda | W309R | 5.07.64 | — | No fix listed | CNA |
- W3002R VendorTenda Affected 5.07.64 Fixed in — No fix listed CNA
- A302 VendorTenda Affected 5.07.64 Fixed in — No fix listed CNA
- W309R VendorTenda Affected 5.07.64 Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:tenda:w309r_firmware:5.07.64_en:*:*:*:*:*:*:* | 5.07.64_en | Vulnerable | Tenda |
| cpe:2.3:h:tenda:w309r:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Tenda |
| cpe:2.3:o:tenda:a302_firmware:5.07.64_en:*:*:*:*:*:*:* | 5.07.64_en | Vulnerable | Tenda |
| cpe:2.3:h:tenda:a302:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Tenda |
| cpe:2.3:o:tenda:w3002r_firmware:5.07.64_en:*:*:*:*:*:*:* | 5.07.64_en | Vulnerable | Tenda |
| cpe:2.3:h:tenda:w3002r:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Tenda |
- cpe:2.3:o:tenda:w309r_firmware:5.07.64_en:*:*:*:*:*:*:* Versions 5.07.64_en Vulnerable ·Tenda
- cpe:2.3:h:tenda:w309r:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Tenda
- cpe:2.3:o:tenda:a302_firmware:5.07.64_en:*:*:*:*:*:*:* Versions 5.07.64_en Vulnerable ·Tenda
- cpe:2.3:h:tenda:a302:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Tenda
- cpe:2.3:o:tenda:w3002r_firmware:5.07.64_en:*:*:*:*:*:*:* Versions 5.07.64_en Vulnerable ·Tenda
- cpe:2.3:h:tenda:w3002r:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Tenda
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-25317
- 2026-10-03 Alias added: GHSA-83gr-gjxh-xvrx
- 2026-10-16 EPSS moved to the 50th–90th percentile
References
Exploit 1
Sources
- CVE-2018-25317 · CVE Program
- CVE-2018-25317 · NVD
- FIRST EPSS
- GHSA-83gr-gjxh-xvrx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences