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CVE-2020-24363 CISA KEV — actively exploited

TP-link TL-WA855RE Missing Authentication for Critical Function Vulnerability

n/a — n/a

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.

CVSS scoreHigh

8.8

EPSS — exploitation probabilityMedium

20.7%

Vector breakdown

Attack vector
Adjacent
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Published
Aug 31, 2020
Modified
Oct 21, 2025
Added to KEV
Sep 2, 2025
Federal patch due
Sep 23, 2025

CISA required action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Weakness classification

Proof-of-concept & exploitation references

Public repositories whose name or description references CVE-2020-24363, found via a live GitHub search at request time. These are community-sourced signals, not a verified working exploit — cross-check each one before relying on it, and treat higher star counts and recent activity as (weak) corroboration, not proof.

No public GitHub repositories referencing CVE-2020-24363 were found at last check. Absence here is not proof no exploit exists — see the references below for vendor advisories and write-ups.

References

Frequently asked questions

What is CVE-2020-24363?

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 has a CVSS base score of 8.8 out of 10 (CVSS 3.1).

Is CVE-2020-24363 actively exploited in the wild?

Yes. CVE-2020-24363 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added Sep 2, 2025, meaning CISA has confirmed evidence of active exploitation.

What is the EPSS score for CVE-2020-24363?

20.7% - meaning FIRST.org's EPSS model estimates a 20.7% probability this vulnerability will be exploited in the wild within 30 days (97% percentile among all scored CVEs).

What type of vulnerability is CVE-2020-24363?

CVE-2020-24363 is classified under CWE-306 (CWE-306 Missing Authentication for Critical Function).

Cross-checked against

Impactr finds and proves whether CVE-2020-24363 — or flaws like it — are actually reachable in your own web apps and APIs, with a reproducible exploit as evidence.