CVE-2023-50224
TP-Link — TP-Link TL-WR841N Authentication Bypass by Spoofing Vulnerability
TP-Link · CWE-290 · in CISA KEV since 2025-09-03
EVRS 75 of 100 Urgent
Patch This Cycle
Rank 910 of 2,960 tracked
Raised to the floor for a confirmed exploited vulnerability.
Why it scores 75
Evidence available: 6 of 7 signalsListed in the CISA KEV catalog, and an EPSS probability of 0.200.
- CISA KEVApplied
- RansomwareDid not apply
- Vendor exploitationDid not apply
- EPSSApplied
- Microsoft Exploitability IndexNot applicable
- Pre-patch disclosureNo data
- KEV recencyDid not apply
- CVSSApplied
The band answers “how soon”, not “how bad”. No data for: Pre-patch disclosure. Why some signals show no data
Fix
Patch or fixed version identifiedCISA required action
Fixed in
tl-wr841n firmware: update to 11_211209 or later | tl-wr841n firmware: update to 12_230317 or later | archer c5 firmware: update to 2_260429 or later | archer c7 firmware: update to 2_241108 or later | archer c1900 firmware: update to 1_260428 or later | tl-wr940n firmware: update to a version newer than 5_220801
Affected versions
- tl-wr841n firmware
>= 11_150616 < 11_211209>= 12_160624 < 12_230317 - mr6400 firmware
- tl-wdr3600 firmware
- tl-wdr4300 firmware
- wdr3500 firmware
- tl-wr710n firmware
- tl-wr740n firmware
- tl-wr741nd firmware
+64 more affected products; see the full list at NVD.
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.
Fixed versions from NVD.
Evidence
Each value with its source| Measure | Value | Source |
|---|---|---|
| CVSS base scoreHow severe the flaw is in itself. It does not say how likely an attack is. | 6.5 | NVD |
| FIRST EPSSFIRST's estimate of the chance this is exploited in the next 30 days, and how that ranks against all CVEs. | 0.200 (97.4th pctl) | FIRST EPSS |
| Actively exploitedWhether a source of record has confirmed attacks using it in the wild. | Confirmed | CISA KEV |
| Ransomware campaign useWhether CISA has seen ransomware operators use it. | Unknown or none | CISA KEV |
| CISA remediation deadlineThe date US federal agencies must have fixed or mitigated it. | 2025-09-24 · KEV since 2025 · listed over a year | CISA KEV |
| Public exploit moduleA module existing is not the same as active exploitation. | None known | Metasploit |
| EUVD cross-referenceENISA's record: CVSS 6.5 (v3.1), assigned by zdi. | Listed | ENISA EUVD |
Description
NVDTP-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.
What CISA says to do