Vulnerability · Published Aug 28, 2026 · Assigned by mitre
CVE-2026-38820
High 8.3
In plain English
A high-severity OS command injection in openNDS from openNDS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.9% (higher than 87% of all known vulnerabilities).
Severity (CVSS 3.1)8.3High
Exploit odds (30 days)2.9%top 13.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | opennds | no fix listed | DEBIAN-CVE-2026-38820 |
| Debian:13 | opennds | no fix listed | DEBIAN-CVE-2026-38820 |
| Ubuntu:26.04:LTS | opennds | no fix listed | UBUNTU-CVE-2026-38820 |
| Ubuntu:26.10 | opennds | no fix listed | UBUNTU-CVE-2026-38820 |
Affected products (as reported)
Weakness: CWE-78 · Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L