Vulnerability in TP-Link Tl-Wr840n
CVE-2018-11714
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.671 (99.3th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.319 · newest: 0.671 · change: +0.351
Affected products
- TP-Link Tl-Wr840n — versions 5.0
- TP-Link Tl-Wr840n Firmware — versions 0.9.1_3.16
- TP-Link Tl-Wr841n — versions 13.0
- TP-Link Tl-Wr841n Firmware — versions 0.9.1_4.16
Weakness classification (CWE)
Public proof-of-concept exploits
References
- blog.securelayer7.net/time-to-disable-tp-link-home-wifi-router/ (Exploit, Third Party Advisory)
- www.exploit-db.com/exploits/44781/ (Exploit, VDB Entry, Third Party Advisory, exploit)
Frequently asked questions
- What is CVE-2018-11714?
- CVE-2018-11714 is a critical-severity vulnerability in TP-Link Tl-Wr840n, classified under Session Fixation. CVSS score: 9.8/10. Published 2018-06-04.
- How severe is CVE-2018-11714?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2018-11714 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.