HIGHVulnerability
Verified
Global

NVD HIGH: CVE-2026-56787 — RTKLIB through 2.4.3 contains an off-by-one out-of-bounds read vulnerability in ...

·Source: NIST NVD

Updated:

Executive Summary

RTKLIB through 2.4.3 contains an off-by-one out-of-bounds read vulnerability in the decode_ssr3 function at src/rtcm3.c:1446 that allows remote attackers to trigger a global buffer overflow via crafted RTCM3 SSR messages with attacker-controlled signal mode fields. Remote attackers can exploit this vulnerability by sending malicious SSR correction streams over NTRIP or serial connections to cause

Analysis

RTKLIB through 2.4.3 contains an off-by-one out-of-bounds read vulnerability in the decode_ssr3 function at src/rtcm3.c:1446 that allows remote attackers to trigger a global buffer overflow via crafted RTCM3 SSR messages with attacker-controlled signal mode fields. Remote attackers can exploit this vulnerability by sending malicious SSR correction streams over NTRIP or serial connections to cause denial of service or crash RTKLIB rovers and CORS servers. CVSS Score: 6.5. Published: 2026-06-25T19:16:45.177.

Indicators of Compromise (1)

CVE (1)
CVE-2026-56787
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Jun 25, 2026. Verified by: NIST.

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