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CVE-2025-6982

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

MEDIUM
6.9
CVSS Score
Published: July 16, 2025 at 08:01 PM UTC
Updated: June 17, 2026 at 10:02 AM UTC
2 products affected across 1 vendorArcher C50Archer C20

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Severity
MEDIUM6.9
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Use of Hard-coded Credentials in TP-Link Archer C50 V3( <= 180703)/V4( <= 250117 )/V5( <= 200407 ), allows attackers to decrypt the config.xml files.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Archer C20· TP-Link
60%
v < EU_V5_260317v < US_V5_260419
Affected range stops below EU_V5_260317, so it looks safe — our inference, not a vendor statement
Affected range stops below US_V5_260419, so it looks safe — our inference, not a vendor statement
Archer C50· TP-Link
60%
v ≤ 180703v ≤ 200407v ≤ 250117

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (4)

Vendor Advisory
Source: f23511db-6c3e-4e32-a477-6aa17d310630
https://www.tp-link.com/us/support/faq/4538/
Patch
Source: cverecord
https://www.tp-link.com/us/support/download/archer-c20/v5/#Firmware
Patch
Source: cverecord
https://www.tp-link.com/en/support/download/archer-c20/v5/#Firmware
Source: af854a3a-2127-422b-91ae-364da2661108
https://www.kb.cert.org/vuls/id/554637

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.9MEDIUMTPLink
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-798

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