VulnerabilityDeferred

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.

HIGH 8.3EPSS 1.74%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.74%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

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 3.1: 8.3 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
EPSS: 1.74% probability · 76th percentile
CISA KEV: Not listed
Weakness: CWE-78
Source: cve@mitre.org

References

https://github.com/openNDS/openNDS/commit/8c03750d9a17d601fa7bd03ae7cde20c7c8d1252

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.