CVE-2026-71980

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Source
https://cve.org/CVERecord?id=CVE-2026-71980
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-71980.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-71980
Published
2026-08-17T17:50:41.205Z
Modified
2026-08-19T03:48:52.447581644Z
Severity
  • 8.7 (High) CVSS_V4 - 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 CVSS Calculator
Summary
Belledonne Communications bcg729 1.1.2 Out-of-Bounds Read via decodeSIDframe()
Details

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.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-125"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/71xxx/CVE-2026-71980.json"
}
References

Affected packages

Git / github.com/belledonnecommunications/bcg729

Affected ranges

Type
GIT
Repo
https://github.com/belledonnecommunications/bcg729
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
fb195811fe630415c9bf433c0c0bebde14314ff2
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "1.1.2"
        },
        {
            "introduced": "bcg729"
        },
        {
            "fixed": "1.1.2"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "DESCRIPTION"
    ]
}

Affected versions

1.*
1.0.2
1.0.3
1.0.4
1.1.0
1.1.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-71980.json"