CVE-2026-56770
libais 0.15 - Out-of-bounds Vector Access in VdmStream::AddLine via Invalid Sequential Message ID
Vexday Risk Score
41Attention
SSVC decision (CISA)
Attend
PoC available → attend closely
CVSS 8.7EPSS 0.3%KEV nãoPoC públicaNuclei —Metasploit —Patch —
Lifecycle
25 Jun 2026Published on NVD
Recommendation: Plan a near-term fix — a public PoC already exists.
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.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
schwehr · libaispublic PoCs found — 1
cve_referencegithub.com/schwehr/libais/issues/263unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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