CVE-2026-64831

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Source
https://cve.org/CVERecord?id=CVE-2026-64831
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-64831.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-64831
Downstream
CGA (10)
DEBIAN (1)
ECHO (1)
JLSEC (1)
MINI (1)
OESA (3)
UBUNTU (1)
Published
2026-07-22T16:35:43Z
Modified
2026-09-30T03:54:19Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
FFmpeg 8.0 - 8.1.2 Stack Buffer Overflow in Vulkan HEVC Decoder
Details

FFmpeg versions 8.0 through 8.1.2 contains a stack buffer overflow vulnerability in the Vulkan HEVC hardware decoder that allows remote attackers to overwrite return addresses and adjacent stack frames by supplying a crafted HEVC/H.265 bitstream. Attackers can embed a malicious vps_num_hrd_parameters value exceeding HEVC_MAX_SUB_LAYERS in any supported container format to overflow stack-allocated arrays in the vk_hevc_end_frame function, potentially achieving arbitrary code execution.

Database specific 
{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-121"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64831.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "introduced":  "8.0"
                },
                {
                    "last_affected":  "8.1.2"
                }
            ],
            "source":  "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / code.ffmpeg.org/FFmpeg/FFmpeg

Affected ranges

Type
GIT
Repo
https://code.ffmpeg.org/FFmpeg/FFmpeg
Events
Introduced
92737390dc133daadce47dd7d2ec8ef3d9ebcbed
Last Affected
92737390dc133daadce47dd7d2ec8ef3d9ebcbed
Type
GIT
Repo
https://git.ffmpeg.org/ffmpeg.git
Events
Introduced
140fd653aed8cad774f991ba083e2d01e86420c7
Last Affected
38b88335f99e76ed89ff3c93f877fdefce736c13
Database specific
Show details 
{
    "cpe":  "cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "8.0"
        },
        {
            "last_affected":  "8.1.2"
        }
    ],
    "source":  "CPE_RANGE"
}
Type
GIT
Repo
https://github.com/ffmpeg/ffmpeg
Events
Introduced
140fd653aed8cad774f991ba083e2d01e86420c7
Last Affected
38b88335f99e76ed89ff3c93f877fdefce736c13
Database specific
Show details 
{
    "cpe":  "cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "8.0"
        },
        {
            "last_affected":  "8.1.2"
        }
    ],
    "source":  "CPE_RANGE"
}

Affected versions

Other
92737390dc133daadce47dd7d2ec8ef3d9ebcbed

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-64831.json"