Unauthenticated stored cross-site scripting (XSS) exists in multiple TP-Link products…
Priority LOW 31CWE-79Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Cross-site scripting
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.
Summary
Unauthenticated stored cross-site scripting (XSS) exists in multiple TP-Link products including WIFI Routers (Wireless AC routers), Access Points, ADSL + DSL Gateways and Routers, which affects TD-W9977v1, TL-WA801NDv5, TL-WA801Nv6, TL-WA802Nv5, and Archer C3150v2 devices through the improper validation of the hostname. Some of the pages including dhcp.htm, networkMap.htm, dhcpClient.htm, qsEdit.htm, and qsReview.htm and use this vulnerable hostname function (setDefaultHostname()) without sanitization.
Why it matters now
EPSS 0.01788 78th percentileScored 2026-11-07
Public exploit Yes 3 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:tp-link:td-w9977_firmware:v1_0.1.0_0.9.1_up_boot\(161123\)_2016-11-23_15.36.15:*:*:*:*:*:*:* | v1_0.1.0_0.9.1_up_boot(161123)_2016-11-23_15.36.15 | Vulnerable | TP-Link |
| cpe:2.3:h:tp-link:td-w9977:-:*:*:*:*:*:*:* | not specified by NVD | Running on | TP-Link |
| cpe:2.3:o:tp-link:tl-wa801nd_firmware:v5_us_0.9.1_3.16_up_boot\[170905-rel56404\]:*:*:*:*:*:*:* | v5_us_0.9.1_3.16_up_boot[170905-rel56404] | Vulnerable | TP-Link |
| cpe:2.3:h:tp-link:tl-wa801nd:-:*:*:*:*:*:*:* | not specified by NVD | Running on | TP-Link |
| cpe:2.3:o:tp-link:tl-wa801n_firmware:v6_eu_0.9.1_3.16_up_boot\[200116-rel61815\]:*:*:*:*:*:*:* | v6_eu_0.9.1_3.16_up_boot[200116-rel61815] | Vulnerable | TP-Link |
| cpe:2.3:h:tp-link:tl-wa801n:-:*:*:*:*:*:*:* | not specified by NVD | Running on | TP-Link |
| cpe:2.3:o:tp-link:tl-wr802n_firmware:v4_us_0.9.1_3.17_up_boot\[200421-rel38950\]:*:*:*:*:*:*:* | v4_us_0.9.1_3.17_up_boot[200421-rel38950] | Vulnerable | TP-Link |
| cpe:2.3:h:tp-link:tl-wr802n:-:*:*:*:*:*:*:* | not specified by NVD | Running on | TP-Link |
| cpe:2.3:o:tp-link:archer-c3150_firmware:v2_170926:*:*:*:*:*:*:* | v2_170926 | Vulnerable | TP-Link |
| cpe:2.3:h:tp-link:archer-c3150:-:*:*:*:*:*:*:* | not specified by NVD | Running on | TP-Link |
- cpe:2.3:o:tp-link:td-w9977_firmware:v1_0.1.0_0.9.1_up_boot\(161123\)_2016-11-23_15.36.15:*:*:*:*:*:*:* Versions v1_0.1.0_0.9.1_up_boot(161123)_2016-11-23_15.36.15 Vulnerable ·TP-Link
- cpe:2.3:h:tp-link:td-w9977:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TP-Link
- cpe:2.3:o:tp-link:tl-wa801nd_firmware:v5_us_0.9.1_3.16_up_boot\[170905-rel56404\]:*:*:*:*:*:*:* Versions v5_us_0.9.1_3.16_up_boot[170905-rel56404] Vulnerable ·TP-Link
- cpe:2.3:h:tp-link:tl-wa801nd:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TP-Link
- cpe:2.3:o:tp-link:tl-wa801n_firmware:v6_eu_0.9.1_3.16_up_boot\[200116-rel61815\]:*:*:*:*:*:*:* Versions v6_eu_0.9.1_3.16_up_boot[200116-rel61815] Vulnerable ·TP-Link
- cpe:2.3:h:tp-link:tl-wa801n:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TP-Link
- cpe:2.3:o:tp-link:tl-wr802n_firmware:v4_us_0.9.1_3.17_up_boot\[200421-rel38950\]:*:*:*:*:*:*:* Versions v4_us_0.9.1_3.17_up_boot[200421-rel38950] Vulnerable ·TP-Link
- cpe:2.3:h:tp-link:tl-wr802n:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TP-Link
- cpe:2.3:o:tp-link:archer-c3150_firmware:v2_170926:*:*:*:*:*:*:* Versions v2_170926 Vulnerable ·TP-Link
- cpe:2.3:h:tp-link:archer-c3150:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·TP-Link
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-3275
- 2026-10-03 Alias added: GHSA-7ww5-8q39-hvcc
References
Sources
- CVE-2021-3275 · CVE Program
- CVE-2021-3275 · NVD
- FIRST EPSS
- GHSA-7ww5-8q39-hvcc · 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