CVE-2026-38820 — HIGH (8.3)

Vulnerability Description

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.

CVSS Score

8.3

HIGH

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

LOW

Related Weaknesses (CWE)

CWE-78

References

https://github.com/openNDS/openNDS/commit/8c03750d9a17d601fa7bd03ae7cde20c7c8d12

FAQ

What is CVE-2026-38820?

CVE-2026-38820 is a vulnerability with a CVSS score of 8.3 (HIGH). 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.

How severe is CVE-2026-38820?

CVE-2026-38820 has been rated HIGH with a CVSS base score of 8.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-38820?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.