VulnerabilityModified
CVE-2021-29280
In TP-Link Wireless N Router WR840N an ARP poisoning attack can cause buffer overflow
MEDIUM 6.4EPSS 0.75%
Does this matter?
Lower severity and a low EPSS score (0.75%). Track it; it rarely justifies an emergency change on its own.
Description
In TP-Link Wireless N Router WR840N an ARP poisoning attack can cause buffer overflow
- CVSS 3.1
- 6.4 MEDIUMCVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
- EPSS
- 0.75% probability · 55th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-668
- Affected
- tp-link/tl-wr840n firmware
- Source
- cve@mitre.org
EPSS 0.8% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/deadlysnowman3308/upgraded-ARP-PoisoningExploit, Third Party Advisory
- https://hackingvila.wordpress.com/2021/04/28/upgraded-arp-poisoning-tool/Third Party Advisory
- https://github.com/deadlysnowman3308/upgraded-ARP-PoisoningExploit, Third Party Advisory
- https://hackingvila.wordpress.com/2021/04/28/upgraded-arp-poisoning-tool/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.