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.
CVE-2026-67596
Score 6.2 from GitHub Security Advisory published 2026-07-30. a secondary CVSS source baseline 6.2; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.2
- EG Score
- 6.2(high)
- EG Risk
- 28(Track)EG Risk 28/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity62% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 1%
- KEV
- Not listed
Published
July 30, 2026
Last Modified
July 31, 2026
Advisory Details (3)
Auto-updated Jul 30, 2026CSL 1010 M2M 3G WiFi Module 2.2.1.4 Weak Encryption via Router.cfg | Advisories | VulnCheck
https://www.vulncheck.com/advisories/csl-1010-m2m-3g-wifi-module-weak-encryption-via-router-cfgZero Science Lab — Information Security Research & Development Laboratory
https://www.zeroscience.mk/#/advisories/ZSL-2026-6000Vendor Advisories for CVE-2026-67596(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 17× in last 7d / 64× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-08-20 22:56 UTCEPSS rescore
- 2026-08-20 18:28 UTCGHSA enrichment
- 2026-08-19 19:30 UTCEG score recompute
- 2026-08-19 19:30 UTCGHSA enrichment
- 2026-08-19 17:04 UTCEPSS rescore
- 2026-08-18 18:42 UTCGHSA enrichment
- 2026-08-17 19:44 UTCEG score recompute
- 2026-08-17 19:43 UTCGHSA enrichment
- 2026-08-17 13:47 UTCEPSS rescore
- 2026-08-16 19:00 UTCEG score recompute
- 2026-08-16 19:00 UTCGHSA enrichment
- 2026-08-16 14:56 UTCEPSS rescore
- 2026-08-15 19:54 UTCEG score recompute
- 2026-08-15 19:54 UTCGHSA enrichment
- 2026-08-15 01:30 UTCEPSS rescore
- 2026-08-14 20:55 UTCEG score recompute
- 2026-08-14 20:55 UTCGHSA enrichment
- 2026-08-13 22:00 UTCEPSS rescore
- 2026-08-13 21:57 UTCGHSA enrichment
- 2026-08-12 23:00 UTCEG score recompute
- 2026-08-12 23:00 UTCGHSA enrichment
- 2026-08-12 13:51 UTCEPSS rescore
- 2026-08-12 00:02 UTCEG score recompute
- 2026-08-12 00:02 UTCGHSA enrichment
- 2026-08-11 01:04 UTCEG score recompute
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- 2026-08-11 01:04 UTCGHSA enrichment
- 2026-08-11 00:00 UTCEPSS rescore
- 2026-08-10 02:06 UTCEG score recompute
- 2026-08-10 02:06 UTCGHSA enrichment
- 2026-08-09 13:47 UTCEPSS rescore
- 2026-08-09 03:09 UTCEG score recompute
- 2026-08-09 03:09 UTCGHSA enrichment
- 2026-08-08 16:37 UTCEPSS rescore
- 2026-08-08 04:11 UTCEG score recompute
- 2026-08-08 04:11 UTCGHSA enrichment
- 2026-08-07 05:13 UTCEG score recompute
- 2026-08-07 05:13 UTCGHSA enrichment
- 2026-08-06 13:47 UTCEPSS rescore
- 2026-08-06 06:15 UTCEG score recompute
- 2026-08-06 06:15 UTCGHSA enrichment
- 2026-08-05 19:17 UTCEPSS rescore
- 2026-08-05 19:17 UTCEPSS rescore
- 2026-08-05 07:18 UTCEG score recompute
- 2026-08-05 07:17 UTCGHSA enrichment
- 2026-08-04 15:10 UTCEPSS rescore
- 2026-08-04 10:39 UTCEPSS rescore
- 2026-08-04 08:16 UTCEG score recompute
- 2026-08-04 08:16 UTCGHSA enrichment
- 2026-08-03 10:36 UTCEPSS rescore
- 2026-08-03 09:15 UTCGHSA enrichment
- 2026-08-02 10:15 UTCGHSA enrichment
- 2026-08-01 11:17 UTCEG score recompute
- 2026-08-01 11:17 UTCGHSA enrichment
- 2026-08-01 04:16 UTCEPSS rescore
- 2026-07-31 12:19 UTCEG score recompute
- 2026-07-31 12:18 UTCGHSA enrichment
- 2026-07-31 12:00 UTCEG score recompute
- 2026-07-31 12:00 UTCGHSA enrichment
- 2026-07-30 19:31 UTCEG score recompute
- 2026-07-30 19:31 UTCGHSA enrichment
- 2026-07-30 18:02 UTCEG score recompute
- 2026-07-30 16:28 UTCEG score recompute
- 2026-07-30 15:39 UTCEG score recompute
- 2026-07-30 15:36 UTCMITRE cvelistV5first tracked
Frequently asked(5)
What is CVE-2026-67596?
When was CVE-2026-67596 disclosed?
Is CVE-2026-67596 actively exploited?
What is the CVSS score of CVE-2026-67596?
How do I remediate CVE-2026-67596?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-67596
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