CVE-2026-67596

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.

CVSS v3 6.2 MEDIUM

6.2^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.5 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://1010.com.hk/
https://www.vulncheck.com/advisories/csl-1010-m2m-3g-wifi-module-weak-encryption-via-router-cfg
https://www.zeroscience.mk/#/advisories/ZSL-2026-6000

Configurations

No configuration.

History

No history.

Information

Published : 2026-07-30 16:17

Updated : 2026-07-31 12:16

NVD link : CVE-2026-67596

Mitre link : CVE-2026-67596

CVE.ORG link : CVE-2026-67596

JSON object : View

Products Affected

No product.

CWE

CWE-261

Weak Encoding for Password

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