What is CVE-2026-38820?

CVE-2026-38820 is a high-severity vulnerability in Opennds, classified under OS Command Injection. CVSS score: 8.3/10. Published 2026-08-28.

How severe is CVE-2026-38820?

High severity. CVSS v3 base score is 8.3 out of 10.

RCE in Opennds

CVE-2026-38820

openNDS before 11.0.0 is susceptible to unauthenticated OS command execution via shell command injection through the fas query parameter on the /opennds_preauth/ endpoint because of libopennds.sh.

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 8.3 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L.

Affected products

Opennds

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

cve@mitre.org

Frequently asked questions

What is CVE-2026-38820?: CVE-2026-38820 is a high-severity vulnerability in Opennds, classified under OS Command Injection. CVSS score: 8.3/10. Published 2026-08-28.
How severe is CVE-2026-38820?: High severity. CVSS v3 base score is 8.3 out of 10.