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TI-2023-19718 Aliases CVE-2023-38320GHSA-2hmr-w3hv-h898

An issue was discovered in OpenNDS Captive Portal before version 10.1.2.

Priority LOW 35CWE-476Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-476.

Summary

An issue was discovered in OpenNDS Captive Portal before version 10.1.2. It has a show_preauthpage NULL pointer dereference that can be triggered with a crafted GET HTTP with a missing User-Agent header. Triggering this issue results in crashing OpenNDS (a Denial-of-Service condition). This problem was fixed in OpenWrt master, OpenWrt 23.05 and OpenWrt 22.03 on 28. August 2023 by updating OpenNDS to version 10.1.3.

Why it matters now

EPSS 0.00956 61st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:opennds:captive_portal:*:*:*:*:*:*:*:*before 10.1.2VulnerableopenNDS
  • cpe:2.3:a:opennds:captive_portal:*:*:*:*:*:*:*:* Versions before 10.1.2 Vulnerable ·openNDS

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-38320
  2. 2026-10-03 Alias added: GHSA-2hmr-w3hv-h898

References

Advisory 1

Other 2

  • TI-2023-19714 An issue was discovered in OpenNDS Captive Portal before version 10.1.2. CVSS 3.1CRITICAL 9.8
  • TI-2023-19720 An issue was discovered in OpenNDS Captive Portal before version 10.1.2. CVSS 3.1HIGH 7.5
  • TI-2023-19713 An issue was discovered in OpenNDS Captive Portal before version 10.1.2. CVSS 3.1HIGH 7.5
  • TI-2023-19711 An issue was discovered in OpenNDS Captive Portal before 10.1.2. CVSS 3.1HIGH 7.5
  • TI-2023-19722 An issue was discovered in OpenNDS before 10.1.2. CVSS 3.1MEDIUM 5.3
  • TI-2023-19712 An issue was discovered in OpenNDS Captive Portal before version 10.1.2. CVSS 3.1MEDIUM 6.5

Sources

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