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Fencer Vulns
medium 6.9

CVE-2025-6982 json

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

published 2025-07-16 15 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-21738

cvss
6.9
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 20%
public exploits
0
none known

Summary

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.

Patch / fix

  • TP-Link Systems Inc. Archer C20 V5 EU_V5_260317, US_V5_260419

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
15 mo ago

Exploit prediction

0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 6.9 CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CNA 4.0 6.9 CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected products

  • TP-Link Systems Inc. Archer C50 V3
  • TP-Link Systems Inc. Archer C50 V4
  • TP-Link Systems Inc. Archer C50 V5
  • TP-Link Systems Inc. Archer C20 V5

Classification

Weakness
  • CWE-798 Use of Hard-coded Credentials

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.