{"id":"CVE-2023-50224","published":"2024-05-03T03:16:10Z","modified":"2026-09-03T17:28:42Z","title":"TP-Link TL-WR841N Authentication Bypass by Spoofing Vulnerability","vendor":"TP-Link","product":"TL-WR841N","tier":"core","eol":null,"description":{"text":"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.","provenance":"source","from":"NVD"},"summary":{"text":"The TP-Link TL-WR841N router has an authentication flaw in its httpd service, which listens on TCP port 80 by default, involving improper authentication in the dropbearpwd component. An attacker on an adjacent network can exploit it without authenticating or any user interaction to disclose stored credentials, which can lead to further compromise.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:13:55Z"},"cvss":{"score":6.5,"severity":"MEDIUM","version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","provenance":"source","from":"NVD"},"epss":{"score":0.20021,"percentile":0.97433,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2025-09-03","dueDate":"2025-09-24","ransomware":false,"requiredAction":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.","notes":"https://www.tp-link.com/us/support/faq/4308/ ; https://nvd.nist.gov/vuln/detail/CVE-2023-50224","provenance":"source"},"vulncheckKev":{"dateAdded":"2025-08-29","exploitedFirstSeen":"2025-08-29","ransomware":false,"evidence":[{"url":"https://www.tp-link.com/us/support/faq/4365/","date":"2025-08-29"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2025-09-03"},{"url":"https://www.acn.gov.it/portale/w/rilevato-sfruttamento-in-rete-delle-cve-2023-50224-e-cve-2025-9377-relative-a-prodotti-tp-link","date":"2025-09-04"},{"url":"https://www.malwarebytes.com/blog/news/2025/09/tp-link-warns-of-botnet-infecting-routers-and-targeting-microsoft-365-accounts","date":"2025-09-04"},{"url":"https://www.rapid7.com/cdn/assets/bltbd2f1cd70f9e3e7f/691360b9c91291146f1a5308/threat-landscape-report-q3-2025.pdf","date":"2025-11-12"},{"url":"https://www.loginsoft.com/reports/annually/vulnerability-intelligence-report-2025","date":"2026-01-20"},{"url":"https://www.ic3.gov/PSA/2026/PSA260407","date":"2026-04-07"},{"url":"https://www.ncsc.gov.uk/news/apt28-exploit-routers-to-enable-dns-hijacking-operations","date":"2026-04-07"},{"url":"https://nukib.gov.cz/download/publikace/vyzkum/Ctvrtletni-prehled-hrozeb-pohledem-NUKIB-Q2-2026.pdf","date":"2026-07-08"},{"url":"https://www.cyfirma.com/research/adversary-unmasked-apt-quarterly-report/","date":"2026-10-08"}],"evidenceTotal":10,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 30, 2026","url":"https://otx.alienvault.com/pulse/6ae35d889ea92b4ce19c2680","created":"2026-10-29"},{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"}],"provenance":"machine"},"cwes":[{"id":"CWE-290","name":"Authentication Bypass by Spoofing"}],"references":[{"url":"https://www.tp-link.com/en/support/download/tl-wr841n/v12/#Firmware","tags":["Product"]},{"url":"https://www.tp-link.com/us/support/faq/5058/","tags":["Vendor Advisory"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-23-1808/","tags":["Third Party Advisory"]},{"url":"https://www.tp-link.com/en/support/download/tl-wr841n/v12/#Firmware","tags":["Product"]},{"url":"https://www.zerodayinitiative.com/advisories/ZDI-23-1808/","tags":["Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-50224","tags":["US Government Resource"]}],"techniques":[{"id":"T1190","name":"Exploit Public-Facing Application","tactics":["initial-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Unauthenticated network-adjacent attack on exposed httpd service","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"network-adjacent attackers to disclose sensitive information","start":118,"end":178}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1552","name":"Unsecured Credentials","tactics":["credential-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Discloses stored credentials from device","mappingType":"primary_impact","evidence":[{"from":"description","quote":"disclose stored credentials, leading to further compromise","start":484,"end":542}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2023-55046","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-55046","exploited":true,"exploitedSince":"2025-09-03","provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1190"],"provenance":"ai"},{"stage":"primary","techniques":["T1552"],"provenance":"ai"}],"timeline":[{"date":"2024-05-03","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-50224","provenance":"source"},{"date":"2025-08-29","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV 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