CVE-2026-102812
Received
Received - Intake
Hard-Coded Cryptographic Key in TP-Link RE305 V3 and Archer C7 V5
Vulnerability report for CVE-2026-102812, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-27
Last updated on: 2026-10-27
Assigner: TPLink
Description
Description
A hard-coded
cryptographic key vulnerability exists in the user-configuration backup
mechanism of TP-Link RE305 V3 and Archer C7 V5. A fixed AES-128 key and
initialization vector are embedded in the firmware configuration-management
component. An attacker who obtains an affected configuration backup file may
extract the cryptographic material from the firmware and use it to decrypt the
backup.
Successful
exploitation may disclose sensitive configuration information contained in a
backup file, including administrator passwords and Wi-Fi credentials.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| TP-Link Systems Inc. | RE305 v3 | 0 |
| TP-Link Systems Inc. | Archer C7 v5 | 0 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-321 | The product uses a hard-coded, unchangeable cryptographic key. |
