cvedb.io
CVE-2026-56786
CRITICAL · CVSS 9.8
EPSS exploitation probability: 0%
Published 2026-06-25T19:16:44.997 · Last modified 2026-06-26T16:52:59.463

Summary

RTKLIB through 2.4.3 contains an out-of-bounds write vulnerability in decode_type1033 function that fails to clamp length counters to destination buffer size, allowing up to 191-byte overflow into fixed 64-byte descriptor fields. An attacker controlling an NTRIP or serial RTCM3 correction stream can craft a valid CRC-bearing type-1033 message to corrupt adjacent rtcm_t object members, potentially achieving arbitrary code execution or denial of service.

Affected products

rtklib — rtklib

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.