CVE-2026-54161

nut: nut: Arbitrary command execution via unsanitized alarm notifications in upsmon

nut

Network UPS Tools is a collection of programs which provide a common interface for monitoring and administering UPS, PDU and SCD hardware. From 2.8.3 to 2.8.5, upsmon in clients/upsmon.c inserts the server-supplied ups.alarm value into shell commands executed by notify(), async_notify(), and wall(). When a monitored device reports an ALARM state and an operator has configured NOTIFYCMD with EXEC in NOTIFYFLAG ALARM, shell metacharacters in the alarm text are evaluated on…

3. Nov 2026

Ausgewertete Quellen

• Red Hat
  Red Hat
• NVD
  CVE-2026-54161