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)
EPSS: 0.759 (99.5th percentile) — read the EPSS interpretation.
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.
Affected products
- Tp-link Tl-wr840n — versions v5
- Tp-link Tl-wr840n_firmware
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- af854a3a-2127-422b-91ae-364da2661108 (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
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.