CVE-2026-38820
Medium
Elevated severity or exploit probability.
CVSS base
8.3
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
EPSS — probability of exploitation (30 days)
2.9%
86.2th percentile
CISA KEV
Not listed
Weakness / dates
CWE-78
Published 2026-08-28 · modified 2026-09-09
CVSS breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
| Attack Vector | A | Adjacent |
| Attack Complexity | L | Low |
| Privileges Required | N | None |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | H | High |
| Integrity | H | High |
| Availability | L | Low |
Timeline
- 2026-08-28 — Published (NVD)
- 2026-09-09 — Last modified (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.