CVE-2026-67596
CSL 1010 M2M 3G WiFi Module 2.2.1.4 Weak Encryption via Router.cfg
- State
- Published
- Severity
- 6.9 Medium
- Published
- Jul 30, 2026
- Updated
- Jul 31, 2026
- Reserved
- Jul 29, 2026
Description
CSL 1010 M2M 3G WiFi Module firmware through 2.2.1.4 contains a weak encryption vulnerability that allows unauthenticated attackers to recover all stored secrets in plaintext by reversing a single-byte XOR cipher that uses a static key to obfuscate the configuration backup file. Attackers can trivially decrypt the Router.cfg backup file to expose web administration and telnet passwords, WPA/WPA2 pre-shared keys, PPPoE and 3G/APN credentials, and SIM identifiers including IMSI and IMEI.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 6.9 Medium | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 6.2 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N | VulnCheck |
Weaknesses
- CWE-261 Weak Encoding for Password
Affected Products
| Product | Versions |
|---|---|
CSL 1010 M2M 3G WiFi ModuleCSL Mobile Limited |
|
References
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