Improper input validation in TP-Link
Priority MEDIUM 53CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
An exploitable denial-of-service vulnerability exists in the URI-parsing functionality of the TP-Link TL-R600VPN HTTP server. A specially crafted URL can cause the server to stop responding to requests, resulting in downtime for the management portal. An attacker can send either an unauthenticated or authenticated web request to trigger this vulnerability.
Why it matters now
EPSS 0.23061 97th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged 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 |
|---|---|---|---|---|---|
| — | TP-Link | TP-Link TL-R600VPN HWv3 FRNv1.3.0 TP-Link TL-R600VPN HWv2 FRNv1.2.3 | — | No fix listed | CNA |
- TP-Link Vendor— Affected TP-Link TL-R600VPN HWv3 FRNv1.3.0 TP-Link TL-R600VPN HWv2 FRNv1.2.3 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:tp-link:tl-r600vpn_firmware:1.3.0:*:*:*:*:*:*:* | 1.3.0 | Vulnerable | TP-Link |
| cpe:2.3:h:tp-link:tl-r600vpn:v3:*:*:*:*:*:*:* | v3 | Running on | TP-Link |
| cpe:2.3:o:tp-link:tl-r600vpn_firmware:1.2.3:*:*:*:*:*:*:* | 1.2.3 | Vulnerable | TP-Link |
| cpe:2.3:h:tp-link:tl-r600vpn:v2:*:*:*:*:*:*:* | v2 | Running on | TP-Link |
- cpe:2.3:o:tp-link:tl-r600vpn_firmware:1.3.0:*:*:*:*:*:*:* Versions 1.3.0 Vulnerable ·TP-Link
- cpe:2.3:h:tp-link:tl-r600vpn:v3:*:*:*:*:*:*:* Versions v3 Running on ·TP-Link
- cpe:2.3:o:tp-link:tl-r600vpn_firmware:1.2.3:*:*:*:*:*:*:* Versions 1.2.3 Vulnerable ·TP-Link
- cpe:2.3:h:tp-link:tl-r600vpn:v2:*:*:*:*:*:*:* Versions v2 Running on ·TP-Link
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-3948
- 2026-10-03 Alias added: GHSA-pf62-mvrg-fj5c
References
More TP-Link Tl-r600vpn Firmware vulnerabilities
- TI-2018-02917 Path traversal in Talos TP-Link CVSS 3.1HIGH 7.5
- TI-2018-02918 Out-of-bounds write in Talos TP-Link CVSS 3.1HIGH 8.8
- TI-2018-02919 Memory corruption in Talos TP-Link CVSS 3.1HIGH 7.2
Sources
- CVE-2018-3948 · CVE Program
- CVE-2018-3948 · NVD
- FIRST EPSS
- GHSA-pf62-mvrg-fj5c · 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