RCE in TP-Link Tl-Wr840n
CVE-2021-41653
The PING function on the TP-Link TL-WR840N EU v5 router with firmware through TL-WR840N(EU)_V5_171211 is vulnerable to remote code execution via a crafted payload in an IP address input field.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.760 (99.5th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.760 · newest: 0.760 · change: 0.000
Affected products
- TP-Link Tl-Wr840n — versions v5
- TP-Link Tl-Wr840n Firmware
Weakness classification (CWE)
Public proof-of-concept exploits
References
- af854a3a-2127-422b-91ae-364da2661108 (Vendor Advisory)
- www.tp-link.com/us/press/security-advisory/ (Vendor Advisory)
- k4m1ll0.com/cve-2021-41653.html (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-41653?
- CVE-2021-41653 is a critical-severity vulnerability in TP-Link Tl-Wr840n, classified under Code Injection. CVSS score: 9.8/10. Published 2021-11-13.
- How severe is CVE-2021-41653?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-41653 known to be exploited?
- 13 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.