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HIGH

CVE-2026-38820

Unauthenticated OS Command Execution via Shell Injection in openNDS before 11.0.0

CVSS v3

8.3

HIGH

EPSS Score

2.9 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-38820 yet.

Full record on NVD

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.

Technical details

CVSS v3 Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Published
2026-08-28
Last Modified
2026-08-28

Frequently asked questions

What is 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.

Is CVE-2026-38820 actively exploited?

Active exploitation of CVE-2026-38820 has not been confirmed. Its EPSS score was 2.9% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-38820?

CVE-2026-38820 has a CVSS v3 base score of 8.3 (HIGH severity), with vector string CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L.

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