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CVE-2020-24363: TP-link TL-WA855RE Missing Authentication for Critical Function Vulnerability

criticalknown exploitedpublic exploitCVE-2020-24363
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
TP-link TL-WA855RE contains a missing authentication for critical function vulnerability. This vulnerability could 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. The impacted products could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.

CSIRTS triage

vendor: TP-Linkproduct: TL-WA855REAuthentication bypass
What
There is a missing authentication for critical function vulnerability that allows unauthenticated attackers to reset the device.
Who is affected
Users of the TP-Link TL-WA855RE range extender.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Users should discontinue product utilization.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2025-09-02
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2020-24363

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2020-24363coverage & exploitation statusNVD · CVE.org

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