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FFmpeg EUVDEUVD-2026-69409

| CVE-2026-52295 LOW
Classic Buffer Overflow (CWE-120)
2026-09-01 mitre GHSA-53pf-4457-qg7g
Low
Disputed · 2.9 Vendor: mitre

Severity by source

Sources disagree (Low–High)
Vendor (mitre) PRIMARY
2.9 LOW
AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
vuln.today AI
6.2 MEDIUM

Local file processing triggers the overflow (AV:L); no auth or privileges needed to supply a crafted IAMF file; pure availability impact only.

3.1 AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.0 AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
SUSE
8.2 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

vuln.today treats the vendor’s rating as authoritative. A higher third-party CVSS (e.g. CISA-ADP) is shown for transparency but does not drive the headline severity.

CVSS VectorVendor: mitre

Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

Lifecycle Timeline

8
Severity Changed
Sep 13, 2026 - 22:22 NVD
MEDIUM LOW
CVSS changed
Sep 13, 2026 - 22:22 NVD
6.2 (MEDIUM) 2.9 (LOW)
Metadata Corrected
Sep 07, 2026 - 11:40 vuln.today
tag: Ffmpeg added
Metadata Corrected
Sep 07, 2026 - 11:40 vuln.today
tag: N A removed
Analysis Generated
Sep 07, 2026 - 11:23 vuln.today
CVSS changed
Sep 07, 2026 - 11:22 NVD
6.2 (MEDIUM)
CVE Published
Sep 01, 2026 - 00:00 cve.org
MEDIUM 6.2
CVE Published
Sep 01, 2026 - 00:00 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

Buffer Overflow vulnerability in Ffmpeg v.7.0 and after allows an attacker to cause a denial of service via the libavformat/iamf_writer.c component

AnalysisAI

Buffer overflow in FFmpeg v.7.0 and later within the libavformat/iamf_writer.c component allows an attacker to crash the process by supplying a crafted IAMF (Immersive Audio Model and Formats) file, resulting in a denial of service. The flaw, rooted in improper bounds checking during extradata padding operations (CWE-120), affects the IAMF audio encoder/writer path introduced alongside IAMF support in FFmpeg 7.0. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Delivery
technique details hidden
Exploit
technique details hidden
Execution
technique details hidden
Persist
technique details hidden
Impact
technique details hidden

Vulnerability AssessmentAI

Exploitation FFmpeg version 7.0 or later must be used to process a crafted IAMF audio file through the iamf_writer.c encoder/muxer code path, specifically triggering the extradata padding logic with oversized or malformed data. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 6.2 score (AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) reflects a local denial-of-service with no confidentiality or integrity compromise. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation The primary fix is to rebuild or update to a version of FFmpeg that incorporates git commit 8439e0203744a30d280668fcd086f74ed5001da1, available via the upstream pull request at https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/22988. … Detailed patch versions, workarounds, and compensating controls in full report.

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Vendor StatusVendor

SUSE

Severity: Important
Product Status
SUSE Linux Enterprise Desktop 15 SP7 Not-Affected
SUSE Linux Enterprise Desktop 15 SP7 Not-Affected
SUSE Linux Enterprise Module for Desktop Applications 15 SP7 Not-Affected
SUSE Linux Enterprise Module for Package Hub 15 SP7 Not-Affected
SUSE Linux Enterprise Module for Package Hub 15 SP7 Not-Affected

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EUVD-2026-69409 vulnerability details – vuln.today

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