# openNDS vulnerabilities

Source: https://junglewise.ai/threats/technologies/opennds  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/opennds.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 4 vulnerabilities in openNDS: 0 in the last 7 days and 4 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-38822, was published on 28 August 2026. Nothing was published in the last eight weeks.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 4
- All time: 4 (0 critical, 0 exploited in the wild)

## About openNDS

Open-source captive portal and network access controller for wireless hotspots.

## Latest openNDS vulnerabilities

- [CVE-2026-38822: openNDS command injection in client_params.sh](https://junglewise.ai/threats/cve-2026-38822-opennds-command-injection-in-client-params-sh) (high, CVSS 7.6, published 28 Aug 2026)
- [CVE-2026-38821: openNDS heap-based buffer overflow in http_microhttpd](https://junglewise.ai/threats/cve-2026-38821-opennds-heap-based-buffer-overflow-in-http-microhttpd) (high, CVSS 7.1, published 28 Aug 2026)
- [CVE-2026-38820: openNDS unauthenticated OS command injection in fas parameter](https://junglewise.ai/threats/cve-2026-38820-opennds-unauthenticated-os-command-injection-in-fas-parameter) (high, CVSS 8.3, published 28 Aug 2026)
- [CVE-2026-38819: openNDS memory leak denial of service](https://junglewise.ai/threats/cve-2026-38819-opennds-memory-leak-denial-of-service) (medium, CVSS 5.3, published 28 Aug 2026)

## Most severe openNDS vulnerabilities

- [CVE-2026-38820: openNDS unauthenticated OS command injection in fas parameter](https://junglewise.ai/threats/cve-2026-38820-opennds-unauthenticated-os-command-injection-in-fas-parameter) (high, CVSS 8.3, published 28 Aug 2026)
- [CVE-2026-38822: openNDS command injection in client_params.sh](https://junglewise.ai/threats/cve-2026-38822-opennds-command-injection-in-client-params-sh) (high, CVSS 7.6, published 28 Aug 2026)
- [CVE-2026-38821: openNDS heap-based buffer overflow in http_microhttpd](https://junglewise.ai/threats/cve-2026-38821-opennds-heap-based-buffer-overflow-in-http-microhttpd) (high, CVSS 7.1, published 28 Aug 2026)
- [CVE-2026-38819: openNDS memory leak denial of service](https://junglewise.ai/threats/cve-2026-38819-opennds-memory-leak-denial-of-service) (medium, CVSS 5.3, published 28 Aug 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 4 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "openNDS vulnerabilities", https://junglewise.ai/threats/technologies/opennds, 9 November 2026.