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CVE Record

CVE-2020-22016: A heap-based Buffer Overflow vulnerability in FFmpeg 4.2 at libavcodec/get_bits.h when writing .mov files,...

A heap-based Buffer Overflow vulnerability in FFmpeg 4.2 at libavcodec/get_bits.h when writing .mov files, which might lead to memory corruption and other potential consequences.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This CVE describes a memory corruption flaw reported in FFmpeg 4.2 when writing .mov files. For businesses, the concern is media-processing systems that handle MOV output, especially where FFmpeg is part of automated workflows. The source bundle does not provide CVSS, exact affected package versions, or confirmed impact beyond potential memory corruption.

Executive priority

Treat this as a targeted patching and exposure-validation item, not an emergency without more evidence. Prioritize externally fed media workflows and production conversion services because memory corruption in media tooling can affect availability and process integrity.

Technical view

The reported flaw is a heap-based buffer overflow in FFmpeg 4.2 at libavcodec/get_bits.h during .mov file writing. Debian issued ffmpeg security updates in 2021. The bundle does not provide CWE mapping, CVSS scoring, a precise upstream fixed version, exploit details, or a complete affected-version matrix.

Likely exposure

Exposure is most likely where FFmpeg 4.2 or downstream ffmpeg packages are used to write .mov files. The bundle lists affected vendor/product as n/a, so confirm exposure through asset inventory, package metadata, and vendor advisories.

Exploitation context

The source bundle does not show active exploitation, and KEV is false. Public references include an FFmpeg ticket and Debian security advisories. Do not assume internet-scale exploitation from these sources alone.

Researcher notes

Evidence is thin: no CVSS, no CWE, no exploit confirmation, and no full affected-version range in the provided bundle. The most defensible path is vendor-advisory correlation, package-version validation, and focused testing of MOV-writing workflows without assuming broader impact.

Mitigation direction

  • Apply relevant Debian ffmpeg security updates where Debian packages are used.
  • Check FFmpeg upstream and distribution vendor guidance for fixed package versions.
  • Prioritize media pipelines that write .mov files from untrusted or external workflows.
  • Limit FFmpeg processing privileges and isolate media conversion jobs where feasible.

Validation and detection

  • Inventory systems and containers with FFmpeg installed or bundled.
  • Identify workflows that write .mov files using FFmpeg.
  • Compare installed ffmpeg versions against Debian and vendor security advisories.
  • Confirm patched package status through the operating system package manager.
  • Review logs for crashes in media conversion services.
Prepared
Confidence
medium
Sources
5

Public sources used

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

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

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CVE-2020-22016 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
4Source 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

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.