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    2 vulnerabilities by BelledonneCommunications

    CVE-2026-71980 (GCVE-0-2026-71980)

    Vulnerability from nvd – Published: 2026-08-17 17:50 – Updated: 2026-08-17 18:12 X_Open Source
    VLAI
    Title
    Belledonne Communications bcg729 1.1.2 Out-of-Bounds Read via decodeSIDframe()
    Summary
    Belledonne Communications bcg729 through 1.1.2 contains an out-of-bounds read vulnerability in the decodeSIDframe() function in src/cng.c that allows unauthenticated network-adjacent attackers to trigger a heap read beyond buffer boundaries by sending a zero-length comfort-noise RTP payload. A zero-length payload causes an integer underflow in the uint8_t filter order calculation, which wraps to 255 and is clamped to 10, causing the function to unconditionally read 11 bytes from a zero-byte buffer, resulting in media process termination or silent consumption of adjacent heap memory as reflection coefficients.
    Severity
    8.7 (High)
    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
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-17 18:12 UTC
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    BelledonneCommunications bcg729 Affected: 0 , ≤ 1.1.2 (semver)
    		Create a notification for this product.
    Date Public
    2026-08-13 00:00
    Credits
    Fatullayev Asadbek
    Show details on NVD website
    To clipboard 

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    CVE-2026-71980 (GCVE-0-2026-71980)

    Vulnerability from cvelistv5 – Published: 2026-08-17 17:50 – Updated: 2026-08-17 18:12 X_Open Source
    VLAI
    Title
    Belledonne Communications bcg729 1.1.2 Out-of-Bounds Read via decodeSIDframe()
    Summary
    Belledonne Communications bcg729 through 1.1.2 contains an out-of-bounds read vulnerability in the decodeSIDframe() function in src/cng.c that allows unauthenticated network-adjacent attackers to trigger a heap read beyond buffer boundaries by sending a zero-length comfort-noise RTP payload. A zero-length payload causes an integer underflow in the uint8_t filter order calculation, which wraps to 255 and is clamped to 10, causing the function to unconditionally read 11 bytes from a zero-byte buffer, resulting in media process termination or silent consumption of adjacent heap memory as reflection coefficients.
    Severity
    8.7 (High)
    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
    7.5 (High)
    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-08-17 18:12 UTC
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    BelledonneCommunications bcg729 Affected: 0 , ≤ 1.1.2 (semver)
    		Create a notification for this product.
    Date Public
    2026-08-13 00:00
    Credits
    Fatullayev Asadbek
    Show details on NVD website
    To clipboard 

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