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CVE Record

CVE-2020-22030: A heap-based Buffer Overflow vulnerability exists in FFmpeg 4.2 at libavfilter/af_afade.c in crossfade_samp...

A heap-based Buffer Overflow vulnerability exists in FFmpeg 4.2 at libavfilter/af_afade.c in crossfade_samples_fltp, 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

A bug in FFmpeg 4.2's audio crossfade filter can corrupt memory while processing media. Business risk is highest where FFmpeg handles untrusted uploads or files. The bundle provides no CVSS score, confirmed impact, exploit evidence, or exact fixed version, so urgency depends on local FFmpeg exposure.

Executive priority

Treat as a targeted remediation item for media-processing environments, not a confirmed internet-wide emergency. Prioritize patching where FFmpeg processes customer or third-party media because memory corruption bugs can affect service reliability and security boundaries.

Technical view

CVE-2020-22030 is a heap-based buffer overflow in FFmpeg 4.2, in libavfilter/af_afade.c's crossfade_samples_fltp path. The stated consequence is possible memory corruption and other potential outcomes. The CVE affected-product data is incomplete; Debian DSA-4990 is cited as a vendor advisory.

Likely exposure

Likely exposure is systems running FFmpeg 4.2, especially services processing untrusted media with audio fade or crossfade filters. Also check applications, containers, appliances, and OS packages that bundle FFmpeg. The CVE record's affected section is listed as n/a.

Exploitation context

No active exploitation is supported by the provided sources or KEV status. The available description suggests exploitation would depend on triggering vulnerable FFmpeg processing through crafted media or filter use, but the bundle does not provide exploitability details.

Researcher notes

The public bundle is sparse: no CVSS, CWE mapping, fixed commit, exploit status, or precise affected package matrix is provided. Avoid extrapolating beyond FFmpeg 4.2 and the named af_afade.c crossfade_samples_fltp location unless vendor advisories confirm more.

Mitigation direction

  • Inventory FFmpeg binaries and packaged dependencies across servers, containers, and media workflows.
  • Prioritize systems that process untrusted user-supplied media.
  • Apply vendor-supported FFmpeg updates, including relevant distribution advisories such as Debian DSA-4990.
  • If immediate updating is blocked, restrict untrusted media processing where feasible.
  • Monitor FFmpeg and OS vendor guidance for the exact fixed package versions.

Validation and detection

  • Check deployed FFmpeg versions against FFmpeg 4.2 exposure.
  • Identify applications that call FFmpeg or link libavfilter.
  • Review media-processing paths for fade or crossfade filter use.
  • Confirm OS package status against Debian DSA-4990 or equivalent vendor advisories.
  • Document any compensating controls around untrusted media ingestion.
Prepared
Confidence
medium
Sources
4

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

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CVE-2020-22030 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

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