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Fencer Vulns
medium 6.5

CVE-2023-50224 kev in the critical feed json

TP-Link TL-WR841N dropbearpwd Improper Authentication Information Disclosure Vulnerability

published 2024-05-03 2 y ago modified 2026-09-03 2 mo ago also EUVD-2023-55046

cvss
6.5
version 3.1, CNA
cisa kev
Exploited
added 2025-09-03
epss
20.0%
EPSS 20.0% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

Summary

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.

Patch / fix

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

  • TP-Link TL-WR841N V11_211209, V12_230317
  • TP-Link TL-WR841ND V11_211209, V12_230317
  • TP-Link Archer C7 V2_241108
  • TP-Link TL-WR941ND V6_220610
  • TP-Link TL-WA901ND V4_201030, V5_201030
  • tp-link tl-wr841n_firmware 12.0

Timeline

  1. Published
  2. Added to CISA KEV
  3. CISA SSVC: exploitation active
  4. CISA patch deadline

Known exploited

Added
14 mo ago
Patch by
2025-09-24 (13 mo ago)
Ransomware
Not known
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Vendor, product
TP-Link, TL-WR841N
CISA name
TP-Link TL-WR841N Authentication Bypass by Spoofing Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
no
Technical impact
partial
Assessed
14 mo ago

Exploit prediction

20.02% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.5 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

  • TP-Link TL-WR841N
  • TP-Link TL-WR841ND
  • TP-Link TL-MR6400
  • TP-Link Archer C5
  • TP-Link Archer C7
  • TP-Link TL-WDR3600
  • TP-Link TL-WDR4300
  • TP-Link TL-WDR3500
  • TP-Link TL-WR740N
  • TP-Link TL-WR741ND
  • TP-Link TL-WR749N
  • TP-Link TL-MR3420
  • TP-Link TL-WR1043ND
  • TP-Link TL-WR1045ND
  • TP-Link TL-WR840N
  • TP-Link TL-WR842N
  • TP-Link TL-WR842ND
  • TP-Link TL-WR845N
  • TP-Link TL-WR941ND
  • TP-Link TL-WR945N
  • TP-Link TL-WA801ND
  • TP-Link TL-WA901ND
  • tp-link tl-wr841n_firmware

Classification

Weakness
  • CWE-290 Authentication Bypass by Spoofing

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.