CVE-2026-5039
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
57/100
Published: 2026-04-23
Modified: 2026-10-25
First seen: 2026-10-29
Status: active
Attack Surface
Adjacent
Low Complexity
No Auth
No Interaction
Integ. Impact
CVSS Vector Breakdown
AV:
Adjacent
AC:
Low
PR:
None
UI:
None
S:
X
AT:
Present
VC:
Low
VI:
High
VA:
High
Description
TP-Link TL-WR841N v13 uses DES-CBC encryption in the TDDPv2 debug protocol with a cryptographic key derived from default web management credentials, making the key predictable if device is left in default configuration. A network-adjacent attacker can exploit this weakness to gain unauthorized access to the protocol, read debug data, modify certain device configuration values, and trigger device reboot, resulting in loss of integrity and a denial-of-service condition.
Weakness Classification (1)
Affected Software (1)
| Vendor | Product | Version |
|---|---|---|
| tp-link | tl-wr841n_firmware | < 231120 |
References & Advisories (1)
Product