CVE-2026-31848 (GCVE-0-2026-31848)
Vulnerability from cvelistv5 – Published: 2026-03-23 12:09 – Updated: 2026-08-10 11:43
VLAI
EPSS
VEX
Title
Reversible ecos_pw Cookie Allows Authentication Bypass in Nexxt Nebula 300+
Summary
Nexxt Solutions Nebula 300+ firmware through version 12.01.01.37 uses the ecos_pw cookie for authentication, which contains Base64-encoded credential data combined with a static suffix. Because the encoding is reversible and lacks integrity protection, an attacker can reconstruct or forge a valid cookie value without proper authentication.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-23 15:16 UTC
CWE
- CWE-312 - Cleartext Storage of Sensitive Information
Assigner
TuranSec
CNA
References
2 references
| URL | Tags |
|---|---|
| https://www.nexxtsolutions.com/connectivity/inter… | third-party-advisory |
| https://nexxt-connectivity-frontend.s3.amazonaws.… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Nexxt Solutions | Nebula 300+ |
Affected:
<= 12.01.01.37
|
Date Public
2026-03-23 12:09
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