CVE-2026-65705

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Source
https://cve.org/CVERecord?id=CVE-2026-65705
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-65705.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-65705
Downstream
Published
2026-07-23T19:00:36.133Z
Modified
2026-08-08T03:32:24.711314248Z
Severity
  • 7.3 (High) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
FFmpeg 3.4 - 8.1.2 vf_floodfill Out-of-Bounds Write via filter_frame()
Details

FFmpeg versions 3.4 through 8.1.2 contain an out-of-bounds write vulnerability in the vffloodfill video filter that allows attackers to corrupt heap memory by supplying a dynamically sized video stream with filtergraph reinitialization disabled via -reinitfilter 0. When configinput() allocates the points traversal stack based on initial frame dimensions and a subsequent larger frame is processed, filterframe() performs flood-fill neighbor pushes beyond the original allocation boundary, resulting in heap corruption and process crash with potential for code execution depending on heap layout and process hardening.

Database specific 
{
    "cwe_ids": [
        "CWE-131",
        "CWE-787"
    ],
    "cna_assigner": "VulnCheck",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65705.json",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "3.4"
                },
                {
                    "last_affected": "8.1.2"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "introduced": "3.4"
                },
                {
                    "last_affected": "8.1.2"
                }
            ]
        },
        {
            "source": "DESCRIPTION",
            "extracted_events": [
                {
                    "introduced": "3.4"
                },
                {
                    "fixed": "8.1.2"
                }
            ]
        }
    ]
}
References

Affected packages

Git / git.ffmpeg.org/ffmpeg.git

Affected ranges

Type
GIT
Repo
https://git.ffmpeg.org/ffmpeg.git
Events
Introduced
22b0daa1b3f0ac5d91cc1a057d230995590847cd
Last affected
38b88335f99e76ed89ff3c93f877fdefce736c13
Database specific 
{
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "3.4"
        },
        {
            "last_affected": "8.1.2"
        }
    ],
    "cpe": "cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*"
}

Affected versions

n3.*
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-2026-65705.json"

Git / github.com/ffmpeg/ffmpeg

Affected ranges

Type
GIT
Repo
https://github.com/ffmpeg/ffmpeg
Events
Introduced
22b0daa1b3f0ac5d91cc1a057d230995590847cd
Last affected
38b88335f99e76ed89ff3c93f877fdefce736c13
Database specific 
{
    "source": "CPE_RANGE",
    "extracted_events": [
        {
            "introduced": "3.4"
        },
        {
            "last_affected": "8.1.2"
        }
    ],
    "cpe": "cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*"
}

Affected versions

n3.*
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-2026-65705.json"