Findings

CVE-2023-50224

TP-Link TL-WR841N Authentication Bypass by Spoofing Vulnerability

Published May 2, 2024 · corrected/updated Sep 3, 2026 · tp-link tl-wr841n firmware · evidence confidence very high

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. The specific flaw exists within the httpd service, which listens on TCP port 80 by default. The issue results from improper authentication. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-19899.

Grounded briefings

Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.

Executive

CVE-2023-50224 is a medium public vulnerability record for tp-link tl-wr841n firmware. CISA lists it as known exploited. Published remediation guidance: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.

System administrator

Identify whether tp-link tl-wr841n firmware is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: tp-link/mr6400 firmware; tp-link/tl-wdr3600 firmware; tp-link/tl-wdr4300 firmware; tp-link/tl-wr710n firmware. Published remediation guidance: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.

Security analyst

Signals on file: CVSS 6.5, EPSS 20.0%. CISA lists it as known exploited. Weakness classes: CWE-290. Sources contributing to this record: cisa_kev, cve_org, epss, nvd. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.

Exploitation and remediation

  • Exploitation evidence

    Confirmed in CISA KEV since Sep 3, 2025. Listed in the CISA Known Exploited Vulnerabilities catalog.

  • Patch and remediation

    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 due date Sep 24, 2025.

  • Safe detection guidance

    Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 2, 2024 · Catalog

    Detected

    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. The specific flaw exists within the httpd service, which listens on TCP port 80 by default. The issue r

  2. Sep 3, 2025 · CISA KEV

    Known exploited

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

  3. Sep 24, 2025 · CISA KEV

    Remediation due

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

  4. Sep 3, 2026 · Catalog

    Updated

    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. The specific flaw exists within the httpd service, which listens on TCP port 80 by default. The issue r

Affected

  • cpe tp-link/mr6400 firmwareversion unspecified
  • cpe tp-link/tl-wdr3600 firmwareversion unspecified
  • cpe tp-link/tl-wdr4300 firmwareversion unspecified
  • cpe tp-link/tl-wr710n firmwareversion unspecified
  • cpe tp-link/tl-wr740n firmwareversion unspecified
  • cpe tp-link/tl-wr741nd firmwareversion unspecified
  • cpe tp-link/tl-wr743nd firmwareversion unspecified
  • cpe tp-link/tl-wr841n firmwareversion unspecified
  • cpe tp-link/wdr3500 firmwareversion unspecified
  • cpe tp-link/wr749n firmwareversion unspecified
  • vendor TP-Link TL-WR841Nversion unspecified

Sources

  • CISA KEVConfirmed exploitationCVE-2023-50224

    TP-Link TL-WR841N contains an authentication bypass by spoofing vulnerability within the httpd service, which listens on TCP port 80 by default, leading to the disclose of stored credentials. The impacted products could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2023-50224

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2023-50224

    30-day exploitation probability 20.0%

    first.org
  • NIST NVDVulnerability recordCVE-2023-50224

    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

    nvd.nist.gov

References