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Medium 6.2Published Jul 30, 2026

CVE-2026-67596CSL 1010 M2M 3G WiFi Module 2.2.1.4 Weak Encryption via Router.cfg

Updated under an hour ago ()

Does this affect you?

It affects CSL Mobile Limited CSL 1010 M2M 3G WiFi Module. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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
6.2 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE)
CWE-261
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
VulnCheck
NVD analysis
Deferred
Record last updated
Jul 31, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
CSL Mobile Limited CSL 1010 M2M 3G WiFi Module
csl_mobile:csl_1010_m2m_3g_wifi_module (from the name)
through 2.2.1.4
CNA record

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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