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CVE Record

CVE-2009-4639: The av_rescale_rnd function in the AVI demuxer in FFmpeg 0.5 allows remote attackers to cause a denial of s...

The av_rescale_rnd function in the AVI demuxer in FFmpeg 0.5 allows remote attackers to cause a denial of service (crash) via a crafted AVI file that triggers a divide-by-zero error.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

This is an old FFmpeg 0.5 denial-of-service flaw. A specially crafted AVI file can crash software that processes it, creating availability risk for media-processing workflows. The source bundle does not show data theft, code execution, CVSS scoring, or active exploitation evidence. Exposure is most likely where FFmpeg 0.5, or applications embedding it, process AVI files from users, partners, email attachments, uploads, or automated media pipelines. The provided affected-product metadata is sparse. Prioritize if the organization runs legacy FFmpeg in internet-facing upload, transcoding, or file-ingestion services. For modern patched environments, urgency is lower, but legacy media stacks should be checked because a crash can disrupt service availability. Mitigation focus: Inventory FFmpeg use and identify any FFmpeg 0.5 deployments.; Check FFmpeg and operating-system vendor advisories for fixed packages.; Update affected FFmpeg packages through supported vendor channels..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2009-4639 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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