PT-2026-52544 · Schwehr · Libais

Fuzzinglabs · Published 2026-06-25 · Updated 2026-06-25 · CVE-2026-56770

Mitre

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

libais through 0.15 VdmStream::AddLine uses an unchecked sentinel value as a vector index when processing AIS sentences with empty or out-of-range sequential message IDs. Remote attackers can crash services or vessel systems by sending crafted AIVDM sentences over VHF marine radio or IP feeds, causing out-of-bounds memory access and potential corruption.

Exploit

Fix

Improper Validation of Array Index

Weakness Enumeration

CWE-129

Related Identifiers

CVE-2026-56770

Affected Products

Libais

References · 3

• 🔥 https://github.com/schwehr/libais/issues/263 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-56770 · Security Note
• https://vulncheck.com/advisories/libais-out-of-bounds-vector-access-in-vdmstream-addline-via-invalid-sequential-message-id · Note