CVE-2018-11714
9.8
CRITICAL · CVSS 3.0 · EPSS 68.1% (pctl 99)
Patch early
EPSS 68.1% — above the 10% action threshold.
Description
An issue was discovered on TP-Link TL-WR840N v5 00000005 0.9.1 3.16 v0001.0 Build 170608 Rel.58696n and TL-WR841N v13 00000013 0.9.1 4.16 v0001.0 Build 170622 Rel.64334n devices. This issue is caused by improper session handling on the /cgi/ folder or a /cgi file. If an attacker sends a header of "Referer: http://192.168.0.1/mainFrame.htm" then no authentication is required for any action.
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 68.05% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-384 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2018-06-04 |
| Last modified | 2026-06-17 |
Affected (4)
| Vendor | Product |
|---|---|
| tp-link | tl-wr840n |
| tp-link | tl-wr840n firmware |
| tp-link | tl-wr841n |
| tp-link | tl-wr841n firmware |
References
→ the Explorer · watch your stack · NVD