CVE-2026-65703

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Source
https://cve.org/CVERecord?id=CVE-2026-65703
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-65703.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-65703
Downstream
Published
2026-07-23T18:52:19.441Z
Modified
2026-08-10T04:01:27.697439136Z
Severity
  • 8.5 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
FFmpeg 2.7 - 8.1.2 Out-of-Bounds Write in TDSC Video Decoder
Details

FFmpeg versions 2.7 through 8.1.2 contain an out-of-bounds write vulnerability in the TDSC video decoder that allows remote attackers to cause heap corruption by supplying a crafted AVI file that changes frame dimensions across TDSF frames. The tdscparsetdsf() function fails to unreference the existing reference frame before calling avframegetbuffer(), causing tdscblit() and tdsc_yuv2rgb() to write attacker-controlled pixel data beyond the end of the undersized reference frame buffer, resulting in a process crash and potential code execution.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-787"
    ],
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "2.7"
                },
                {
                    "last_affected": "8.1.2"
                }
            ],
            "source": "AFFECTED_FIELD"
        },
        {
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "introduced": "2.7"
                },
                {
                    "last_affected": "8.1.2"
                }
            ]
        },
        {
            "source": "DESCRIPTION",
            "extracted_events": [
                {
                    "introduced": "2.7"
                },
                {
                    "fixed": "8.1.2"
                }
            ]
        }
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65703.json"
}
References

Affected packages

Git / github.com/ffmpeg/ffmpeg

Affected ranges

Type
GIT
Repo
https://github.com/ffmpeg/ffmpeg
Events
Introduced
0bcb6ac150690d1b799982efabc11cab3420f3e3
Last affected
38b88335f99e76ed89ff3c93f877fdefce736c13
Database specific 
{
    "extracted_events": [
        {
            "introduced": "2.7"
        },
        {
            "last_affected": "8.1.2"
        }
    ],
    "cpe": "cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*",
    "source": "CPE_RANGE"
}

Affected versions

n2.*
n2.7-dev
n2.8-dev
n2.9-dev
n3.*
n3.1-dev
n3.2-dev
n3.3-dev
n3.4-dev
n3.5-dev
n4.*
n4.1-dev
n4.2-dev
n4.3-dev
n4.4-dev
n4.5-dev
n5.*
n5.1-dev
n5.2-dev
n6.*
n6.1-dev
n6.2-dev
n7.*
n7.1-dev
n7.2-dev
n8.*
n8.1
n8.1-dev
n8.1.1
n8.1.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-65703.json"