CVE-2020-24363

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

  • High 8.8
  • Exploited: added to CISA KEV 2 Sep 2025

Description

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.

Key facts

Published
31 Aug 2020
Last changed
21 Oct 2025
Assigned by
mitre
KEV added
2 Sep 2025
KEV fix due
23 Sep 2025
EPSS
22.187% likely to be exploited in the next 30 days, higher than 97.714% of CVEs (scores for 15 Nov 2026)
SSVC (CISA)
Exploitation: active; Automatable: no; Technical impact: total

Severity scores

Each score is shown as its source gave it. They are not averaged or merged.

  • 8.8CVSS 3.1, Highfrom CISA (ADP container)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What to do

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

Historical context and remediation

This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.

No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.

Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.

Read the original CVE record.

Affected products

VendorProductVersions
n/an/a
  • n/a (affected)

Timeline

  1. 31 Aug 2020 Published
  2. 2 Sep 2025 CVE-2020-24363 added to CISA KEV
  3. 2 Sep 2025 Added to the CISA KEV catalogue

Weakness

References