CVE-2026-56790
High · 7.3CVSS
7.3
EPSS
0.3%
Published
Jun 25, 2026
CISA due date
—
The record
CANBoat through 6.22, fixed in commit a5a22b7, contains an off-by-one global buffer overflow in the searchForPgn() function in analyzer/pgn.c that allows remote attackers to crash the application. Attackers can deliver a crafted NMEA-2000 message with an out-of-range PGN value over CAN bus or N2K-over-IP to trigger an out-of-bounds array access and denial of service.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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