critical9.8
CVE-2026-31848
Nexxt Solutions Nebula 300+ firmware through version 12.01.01.37 uses the ecos_pw cookie for authentication, which contains Base64-encoded credential data comb…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Nexxtsolutions | Nebula300plus Firmware | through 12.01.01.37 |