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TI-2026-24402 Aliases CVE-2026-31849GHSA-fgpp-3hfm-jqqh

Missing CSRF Protection on Administrative Endpoints in Nexxt Nebula 300+

Priority LOW 36CWE-352Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
None
Impact type
Tampering
Confidentiality · integrity · availability
None · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-352.

Summary

Nexxt Solutions Nebula 300+ firmware through version 12.01.01.37 does not implement CSRF protections on state-changing endpoints such as /goform/setSysTools and other administrative interfaces. As a result, an attacker can craft malicious web requests that are executed in the context of an authenticated administrator’s browser, leading to unauthorized configuration changes, including enabling services or modifying system settings.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00121 1st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Nexxt SolutionsNebula 300+up to 12.01.01.37—No fix listedCNA
  • Nebula 300+ VendorNexxt Solutions Affected up to 12.01.01.37 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:nexxtsolutions:nebula300plus_firmware:*:*:*:*:*:*:*:*up to 12.01.01.37VulnerableNexxt Solutions
cpe:2.3:h:nexxtsolutions:nebula300plus:-:*:*:*:*:*:*:*not specified by NVDRunning onNexxt Solutions
  • cpe:2.3:o:nexxtsolutions:nebula300plus_firmware:*:*:*:*:*:*:*:* Versions up to 12.01.01.37 Vulnerable ·Nexxt Solutions
  • cpe:2.3:h:nexxtsolutions:nebula300plus:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Nexxt Solutions

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-31849
  2. 2026-10-03 Alias added: GHSA-fgpp-3hfm-jqqh

References

Advisory 2

  • TI-2026-24401 Reversible ecos_pw Cookie Allows Authentication Bypass in Nexxt Nebula 300+ CVSS 4.0HIGH 8.7
  • TI-2026-24400 Hidden Functionality Enables Remote Telnet Activation via /goform/setSysTools in Nexxt Nebula 300+ CVSS 4.0HIGH 8.5
  • TI-2026-24404 Nexxt Nebula 300+ - Lack of Rate Limiting Enables Brute-Force Attacks CVSS 4.0HIGH 7.7
  • TI-2026-24403 Plaintext Storage of Credentials in Configuration Backup in Nexxt Nebula 300+ CVSS 4.0MEDIUM 6.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences