Is CVE-2026-56770 actively exploited?

No active exploitation of CVE-2026-56770 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-56770 be exploited remotely?

Yes. CVE-2026-56770 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-56770?

CVE-2026-56770 has a CVSS score of 7.5 (HIGH).

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HIGH

CVE-2026-56770

CWE-129Published: June 25, 2026· Updated: Jun 25, 2026

7.5

CVSS v3.1

EPSS:0.34%probability of exploitation in 30 daysPercentile:25.8th

Official Description

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.

NVD Source

Technical Analysis

CVE-2026-56770 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.