TP-Link TL-WA855RE V5 20200415-rel37464 devices allow an unauthenticated attacker (on the same network) to submit a TDDP_RESET POST request
Affects TP-Link TL-WA855RE V5 firmware 20200415-rel37464, and possibly earlier versions. The fix is in TL-WA855RE(EU)_V5_200731. No vendor severity rating is given.
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Listed in CISA KEV
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Actively exploited
- Fix
- Fixed in TL-WA855RE(EU)_V5_200731
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
The TP-Link TL-WA855RE V5 wireless range extender firmware is affected. An unauthenticated attacker on the same network can trigger a factory reset and reboot of the device, then set a new administrative password to gain control of it.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original 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.
Timeline
- CVE published
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- CISA remediation deadline
Due date for US federal agencies to patch
- Record last updated
- EPSS reached 10%
FIRST estimates at least a 10% chance of exploitation in the next 30 days
Affected versions
- n/a n/a
Version range not reported
References 3
tp-link.com
malwrforensics.com
pastebin.com
Questions about CVE-2020-24363
What does this mean?
A device on the same network can be reset to factory settings and rebooted through a TDDP_RESET POST request, which needs no login. The attacker can then set a new administrative password and gain full access to the device.Source: pastebin.com
Am I affected, and how do I check?
The issue is reported on TL-WA855RE V5 firmware 20200415-rel37464, tested on TL-WA855RE(EU)_V5_200415, and may affect earlier firmware too. Compare the device's firmware version with these versions to check.Source: pastebin.com
What should I do about it?
Update the firmware to TL-WA855RE(EU)_V5_200731, which the vendor says fixes the issue.Source: pastebin.com
Is it being exploited?
Yes. CISA added it to its Known Exploited Vulnerabilities catalog on 2025-09-02, which means it has evidence of attacks. No public exploit code is tracked.Source: cisa.gov, cve.now feed data