Hardcoded DES Decryption Keys in TP-Link Archer C50 V3/V4/V5 and C20 V5
Priority LOW 30CWE-798Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-798.
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00283 20th percentileScored 2026-11-07
Fix Fixed Archer C20 V5 (TP-Link Systems Inc.): US_V5_260419, EU_V5_260317
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| TP-Link | Archer C50 V3 | up to 180703 | — | No fix listed | CNA |
| TP-Link | Archer C50 V4 | up to 250117 | — | No fix listed | CNA |
| TP-Link | Archer C50 V5 | up to 200407 | — | No fix listed | CNA |
| TP-Link | Archer C20 V5 | before US_V5_260419; before EU_V5_260317 | US_V5_260419, EU_V5_260317 | Patch available | CNA |
- Archer C50 V3 VendorTP-Link Affected up to 180703 Fixed in — No fix listed CNA
- Archer C50 V4 VendorTP-Link Affected up to 250117 Fixed in — No fix listed CNA
- Archer C50 V5 VendorTP-Link Affected up to 200407 Fixed in — No fix listed CNA
- Archer C20 V5 VendorTP-Link Affected before US_V5_260419; before EU_V5_260317 Fixed in US_V5_260419, EU_V5_260317 Patch available CNA
Remediation
- Fix · CNA Archer C20 V5 (TP-Link Systems Inc.) Fixed in US_V5_260419, EU_V5_260317
Timeline
- 2026-10-02 Threatist record created from CVE-2025-6982
- 2026-10-03 Alias added: GHSA-5j4q-7r76-c92w
References
More TP-Link vulnerabilities
- TI-2023-16571 TP-Link TL-WR940N V2/V4, TL-WR841N V8/V10, and TL-WR740N V1/V2 was discovered to contain… KEVCVSS 3.1HIGH 8.8
- TI-2023-01313 Command injection in TP-Link Archer AX21 KEVCVSS 3.1HIGH 8.8
- TI-2020-14907 TP-Link TL-WA855RE V5 20200415-rel37464 devices allow an unauthenticated attacker (on the… KEVCVSS 3.1HIGH 8.8
- TI-2025-08589 Authenticated RCE via Parental Control command injection KEVCVSS 4.0HIGH 8.6
- TI-2015-02672 Directory traversal vulnerability in TP-LINK Archer C5 (1.2) with firmware before 150317… KEVCVSS 3.1HIGH 7.5
- TI-2023-27456 Authentication bypass by spoofing in TP-Link TL-WR841N KEVCVSS 3.1MEDIUM 6.5
Sources
- CVE-2025-6982 · CVE Program
- CVE-2025-6982 · NVD
- FIRST EPSS
- GHSA-5j4q-7r76-c92w · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences