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    4 vulnerabilities by tomojitakasu

    CVE-2026-56789 (GCVE-0-2026-56789)

    Vulnerability from cvelistv5 – Published: 2026-06-25 18:14 – Updated: 2026-06-25 18:26 X_Open Source
    VLAI
    Title
    RTKLIB 2.4.3 - Heap Buffer Overflow and Stack Read via Oversized RINEX Epoch Satellite Count
    Summary
    RTKLIB through 2.4.3 contains a heap buffer overflow vulnerability in the readrnxobsb function in src/rinex.c that allows attackers to trigger memory corruption by failing to clamp satellite count values from RINEX epoch headers. Attackers can craft malicious RINEX files declaring more than 64 satellites per epoch to cause heap buffer overflow writes and out-of-bounds stack reads, crashing RTKLIB-based applications including rnx2rtkp and RTKPOST.
    Severity
    7.1 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
    6.5 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-122 - Heap-based Buffer Overflow
    Assigner
    References
    Impacted products
    Vendor Product Version
    tomojitakasu RTKLIB Affected: 0 , ≤ 2.4.3 (semver)
    		Create a notification for this product.
    Date Public
    2026-06-09 00:00
    Credits
    FuzzingLabs
    Show details on NVD website
    To clipboard 

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    CVE-2026-56788 (GCVE-0-2026-56788)

    Vulnerability from cvelistv5 – Published: 2026-06-25 18:13 – Updated: 2026-06-27 02:26 X_Open Source
    VLAI
    Title
    RTKLIB 2.4.3 - Out-of-bounds Read via Negative Array Index in getcodepri
    Summary
    RTKLIB through 2.4.3 contains an out-of-bounds read vulnerability in getcodepri function when processing unrecognized RINEX observation codes, allowing attackers to trigger denial of service. Crafted RINEX files with unknown observation types cause negative array indexing into the codepris table, resulting in reliable crashes and potential memory disclosure of adjacent global data.
    Severity
    4.8 (Medium)
    CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N
    4.4 (Medium)
    CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    tomojitakasu RTKLIB Affected: 0 , ≤ 2.4.3 (semver)
    		Create a notification for this product.
    Date Public
    2026-06-09 00:00
    Credits
    FuzzingLabs
    Show details on NVD website
    To clipboard 

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    CVE-2026-56787 (GCVE-0-2026-56787)

    Vulnerability from cvelistv5 – Published: 2026-06-25 18:12 – Updated: 2026-06-25 18:27 X_Open Source
    VLAI
    Title
    RTKLIB 2.4.3 - Off-by-One Out-of-Bounds Read in decode_ssr3 via RTCM3 SSR Message
    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 denial of service or crash RTKLIB rovers and CORS servers.
    Severity
    6.9 (Medium)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N
    6.5 (Medium)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    tomojitakasu RTKLIB Affected: 0 , ≤ 2.4.3 (semver)
    		Create a notification for this product.
    Date Public
    2026-06-09 00:00
    Credits
    FuzzingLabs
    Show details on NVD website
    To clipboard 

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    CVE-2026-56786 (GCVE-0-2026-56786)

    Vulnerability from cvelistv5 – Published: 2026-06-25 18:11 – Updated: 2026-06-25 18:41 X_Open Source
    VLAI
    Title
    RTKLIB 2.4.3 - Out-of-bounds Write in decode_type1033 via Crafted RTCM3 Message
    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.
    Severity
    9.3 (Critical)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
    9.8 (Critical)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: total
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    tomojitakasu RTKLIB Affected: 0 , ≤ 2.4.3 (semver)
    		Create a notification for this product.
    Date Public
    2026-06-09 00:00
    Credits
    FuzzingLabs
    Show details on NVD website
    To clipboard 

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          "url": "https://github.com/tomojitakasu/RTKLIB/issues/799"
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    "dateReserved": "2026-06-23T01:24:27.651Z",
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