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Medium · 6.9 CVE-2025-6982 EUVD-2025-21738GHSA-5j4q-7r76-c92w

Hardcoded DES Decryption Keys in TP-Link Archer C50 V3/V4/V5 and C20 V5

Published Jul 16, 2025 · Updated Apr 22, 2026 · Assigned by TPLink

Description

Use of Hard-coded Credentials in TP-Link Archer C50 V3(

<=

180703)/V4(

<=

250117

)/V5(

<=

200407

), and C20 V5 (<US_V5_260419 or <EU_V5_260317) allows attackers to decrypt the config.xml files.

Affected products

VendorProductAffectedFixed
TP-Link Systems Archer C50 V3 ≤ 180703 —
TP-Link Systems Archer C50 V4 ≤ 250117 —
TP-Link Systems Archer C50 V5 ≤ 200407 —
TP-Link Systems Archer C20 V5 < US_V5_260419, < EU_V5_260317 US_V5_260419

References