UBUNTU-CVE-2026-64831

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Source

https://ubuntu.com/security/CVE-2026-64831

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-64831.json

JSON Data

https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-64831

Upstream

CVE-2026-64831

Downstream

USN-8716-2

Related

USN-8716-2

Published

2026-07-22T17:16:00Z

Modified

2026-09-10T00:45:03Z

Severity

8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
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
Ubuntu - medium

Summary

[none]

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.

References

Affected packages

Ubuntu:Pro:14.04:LTS / libav

Package

Name: libav
Purl: pkg:deb/ubuntu/libav?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

6:0.*

6:0.8.7-1ubuntu2

6:9.*

6:9.10-1ubuntu1

6:9.10-1ubuntu2

6:9.10-1ubuntu5

6:9.10-1ubuntu6

6:9.10-1ubuntu7

6:9.11-2ubuntu1

6:9.11-2ubuntu2

6:9.13-0ubuntu0.14.04.1

6:9.14-0ubuntu0.14.04.1

6:9.16-0ubuntu0.14.04.1

6:9.18-0ubuntu0.14.04.1

6:9.20-0ubuntu0.14.04.1

6:9.20-0ubuntu0.14.04.1+esm1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libav-tools",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavcodec-extra",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavcodec-extra-54",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavcodec54",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavdevice-extra-53",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavdevice53",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavfilter-extra-3",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavfilter3",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavformat-extra-54",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavformat54",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavresample1",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavutil-extra-52",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libavutil52",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libswscale-extra-2",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        },
        {
            "binary_name": "libswscale2",
            "binary_version": "6:9.20-0ubuntu0.14.04.1+esm1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-64831.json"

Ubuntu:Pro:26.04:LTS / ffmpeg

Package

Name: ffmpeg
Purl: pkg:deb/ubuntu/ffmpeg?arch=source&distro=esm-apps%2Fresolute

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

7:8.0.1-3ubuntu2+esm4

Affected versions

7:7.*

7:7.1.1-1ubuntu4

7:7.1.2-1ubuntu3

7:7.1.2-1ubuntu4

7:7.1.3-1ubuntu1

7:8.*

7:8.0.1-2ubuntu1

7:8.0.1-3ubuntu1

7:8.0.1-3ubuntu2

7:8.0.1-3ubuntu2+esm1

7:8.0.1-3ubuntu2+esm3

Ecosystem specific

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "ffmpeg",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavcodec-extra",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavcodec-extra62",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavcodec62",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavdevice62",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavfilter-extra",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavfilter-extra11",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavfilter11",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavformat-extra",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavformat-extra62",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavformat62",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libavutil60",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libswresample6",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        },
        {
            "binary_name": "libswscale9",
            "binary_version": "7:8.0.1-3ubuntu2+esm4"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-64831.json"