Dashboard / CVE-2026-56790

CVE-2026-56790

HIGH
MEDIUM Priority: 0.02 BB Relevance: 39/100
Published: 2026-06-25 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Auth Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: None
UI: Passive
S: X
AT: None
VC: Low
VI: High
VA: High

Description

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.

Weakness Classification (1)

References & Advisories (4)

Bug Bounty Relevance

39 / 100
✓ No authentication
✓ Low complexity

CVSS Score

7.0 / 10.0 v4.0
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.31%
Raw Score 0.003090
Percentile 23.7%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00309
2026-10-28
0.00309

Intelligence Sources

nvd ref →

External Links