CVE-2026-4346 (GCVE-0-2026-4346)

Vulnerability from cvelistv5 – Published: 2026-03-26 21:16 – Updated: 2026-03-27 19:39
VLAI?
Title
Cleartext Storage of Administrative and Wi-Fi Credentials via Accessible Serial Interface in TP Link's TL-WR850N
Summary
The vulnerability affecting TL-WR850N v3 allows cleartext storage of administrative and Wi-Fi credentials in a region of the device’s flash memory while the serial interface remains enabled and protected by weak authentication. An attacker with physical access and the ability to connect to the serial port can recover sensitive information, including the router’s management password and wireless network key. Successful exploitation can lead to full administrative control of the device and unauthorized access to the associated wireless network.
Severity ?
5.1 (Medium)
CVSS:4.0/AV:P/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N
CWE
  • CWE-312 - Cleartext storage of sensitive information
Assigner
References
Impacted products
Vendor Product Version
TP-Link Systems Inc. TL-WR850N v3 Affected: 0 , < V3_0.9.1 Build251205 (custom)
Create a notification for this product.
Credits
Anirudh Tarikere Shankarappa
Show details on NVD website
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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