CVE-2026-31848

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. This allows unauthorized administrative access to protected endpoints.

Affected Software

VendorProductVersion RangeStatus
Nexxt SolutionsNebula 300+<= 12.01.01.37affected

Weaknesses

  • CWE-312: CWE-312 Cleartext Storage of Sensitive Information

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References