CVE-2026-67596 Details
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.
A weak encryption vulnerability has been identified in the CSL 1010 M2M 3G WiFi Module firmware versions through 2.2.1.4. This vulnerability allows unauthenticated attackers to recover all stored secrets in plaintext by reversing a single-byte XOR cipher with a static key applied to the configuration backup file. The Router.cfg backup file can be easily decrypted to expose web administration and telnet passwords, WPA/WPA2 pre-shared keys, PPPoE and 3G/APN credentials, and SIM identifiers including IMSI and IMEI.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jul 30, 2026CISA-ADP
Assessed Jul 30, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://1010.com.hk/ | [email protected] | Vendor |
| https://www.vulncheck.com/advisories/csl-1010-m2m-3g-wifi-module-weak-encryption-via-router-cfg | [email protected] | Advisory |
| https://www.zeroscience.mk/#/advisories/ZSL-2026-6000 | [email protected] | AdvisoryExploitTechnical Description |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-261 | Weak Encoding for Password | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| CSL 1010 M2M 3G WiFi Module | <= 2.2.1.4 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 31, 2026 | CVE Modified | [email protected] |
| Jul 30, 2026 | CVE Modified | CISA-ADP |
| Jul 30, 2026 | New CVE Received | [email protected] |
Volerion