The COSPAS-SARSAT protocol allows remote attackers to forge messages, replay encrypted messages, conduct denial of service attacks, and send private messages (unrelated to distress alerts) via a crafted 406 MHz digital signal.
Severity
CVSS 3.0
9.1 critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
EPSS
2.3% chance of exploitation in the next 30 days; higher than 83% of CVEs (scores of 2026-10-31)