CVE-2020-22021

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Published May 26, 2021 CVSS 3.1 · 6.5 Medium EPSS 1.7% KEV · Not listed

Description

Buffer Overflow vulnerability in FFmpeg 4.2 at filter_edges function in libavfilter/vf_yadif.c, which could let a remote malicious user cause a Denial of Service.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:ffmpeg:ffmpeg:4.2:-:*:*:*:*:*:*

Configuration 2 [-]

OR	cpe:2.3:o:debian:debian_linux:9.0:::::::*
	cpe:2.3:o:debian:debian_linux:10.0:::::::*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
Debian DLA	DLA-2742-1	ffmpeg security update
Debian DLA	DLA-2742-2	ffmpeg regression update
Debian DSA	DSA-4990-1	ffmpeg security update
EUVD	EUVD-2020-14787	Buffer Overflow vulnerability in FFmpeg 4.2 at filter_edges function in libavfilter/vf_yadif.c, which could let a remote malicious user cause a Denial of Service.
Ubuntu USN	USN-5167-1	FFmpeg vulnerabilities
Ubuntu USN	USN-5472-1	FFmpeg vulnerabilities

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction Required

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication None

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

Exploit prediction score: 1.7% (1.681% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://lists.debian.org/debian-lts-announce/2021/08/msg00018.html
https://trac.ffmpeg.org/ticket/8240
https://www.debian.org/security/2021/dsa-4990

History

Jul 13, 2025 1:45 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.00479}`	epss `{'score': 0.00366}`

Jul 12, 2025 1:45 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics	epss `{'score': 0.0048}`	epss `{'score': 0.00479}`

Subscriptions

Debian Debian Linux

Ffmpeg Ffmpeg

Weaknesses

CWE-120

Sources

CVE record Updated: Aug 4, 2024, 2:30 PM

Status: PUBLISHED
Assigner: mitre
Published: May 26, 2021, 7:25 PM
Updated: Aug 4, 2024, 2:30 PM
Reserved: Aug 13, 2020, 12:00 AM

View source JSON

Vulnrichment No data

No data.

NVD Updated: Jun 17, 2026, 3:04 AM

Status: Modified
Published: May 26, 2021, 8:15 PM
Modified: Jun 17, 2026, 3:04 AM

View source JSON

Red Hat No data

No data.

OpenCVE enrichment No data

No data.

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