CVE-2023-50224 — TP-Link TL-WR841N Authentication Bypass by Spoofing Vulnerability

TP-Link TL-WR841N dropbearpwd Improper Authentication Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of TP-Link TL-WR841N routers. Authentication is not required to exploit thi

01What is this vulnerability?

TP-Link TL-WR841N dropbearpwd Improper Authentication Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of TP-Link TL-WR841N routers. Authentication is not required to exploit this vulnerability.

02Affected products

Vendor	Product	Versions
TP-Link	TL	WR841N — 3.16.9 build 200409

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2025-09-03. Ransomware use: Unknown.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2024-05-03T02:14:42.922Z
• Last modified: 2025-10-21T23:05:19.610Z
• Added to CISA KEV: 2025-09-03
• BOD 22-01 due: 2025-09-24

09References

• www.zerodayinitiative.com — https://www.zerodayinitiative.com/advisories/ZDI-23-1808/
• www.tp-link.com — https://www.tp-link.com/en/support/download/tl-wr841n/v12/#Firmware