CISA KEV · Known exploitedHigh

CVE-2020-24363

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.

CVSS
8.8
EPSS
20.7%
97.3% percentile
CISA KEV
Listed
Published
2020.09.01
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability20.7%
Technical severityCVSS 8.8

Vulnerability overview

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.

Affected product and versions

Product
TP-Link TL-WA855RE
Affected versions
< 200731
Fixed versions
200731

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
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.

Due date: 2025.09.23
  1. 1
    Identify

    Confirm that TP-Link TL-WA855RE and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-306
KEV added
2025.09.02
Ransomware use
미확인
CVE-2020-24363 — TP-Link TL-WA855RE | SECUFOCUS NOW