CVE-2020-24363
TP-link TL-WA855RE Missing Authentication for Critical Function Vulnerability
TP-Link TL-WA855RE
TP-Link TL-WA855RE V5 20200415-rel37464 devices allow an unauthenticated attacker (on the same network) to submit a TDDP_RESET POST request for a factory reset and reboot. The attacker can then obtain incorrect access control by setting a new administrative password.
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 2 September 2025. US federal agencies were required to remediate it by 23 September 2025.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 22.2%, which is higher than 97.7% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Frequently asked questions
Is CVE-2020-24363 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2020-24363.
What does CVE-2020-24363 affect?
CVE-2020-24363 affects TP-Link TL-WA855RE. TP-Link TL-WA855RE V5 20200415-rel37464 devices allow an unauthenticated attacker (on the same network) to submit a TDDP_RESET POST request for a factory reset and reboot. The attacker can then obtain incorrect access control by setting a new administrative password.
How severe is CVE-2020-24363?
CVE-2020-24363 is rated HIGH with a CVSS base score of 8.8. EPSS puts the probability of exploitation in the next 30 days at 22.2%, higher than 97.7% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 23 September 2025.
How should organisations respond to CVE-2020-24363?
Apply the vendor patch for TP-Link TL-WA855RE as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.