ShadowTrackr

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CVE-2020-20445

FFmpeg 4.2 is affected by a Divide By Zero issue via libavcodec/lpc.h, which allows a remote malicious user to cause a Denial of Service.
An official patch is available. Apply the patch as soon as possible.
6.5
CVSS
5.4
ShadowTrackr
NO
CISA KEV
-
NCSC.nl
CVSS v4.0 Metrics
Exploitability
Attack VectorNetwork
ComplexityLow
RequirementsPresent
PrivilegesLow
User InteractionNone
Threat
Exploit MaturityPoC
Vulnerable System
ConfidentialityNone
IntegrityNone
AvailabilityHigh
Subsequent System
ConfidentialityNone
IntegrityNone
AvailabilityNone
Supplemental
SafetyNegligible
AutomatableYes
RecoveryAutomatic
Value DensityConcentrated
UrgencyMedium
Patch StatusOfficial Patch

Change Log
DateSourceChangesScore
2026-07-21PoCE: U→P2.3 → 5.4
2026-07-21nvdAV: P→N, AC: H→L, PR: H→L, UI: A→N, VA: N→H0.0 → 2.3
2026-07-21nvdpatch: Unavailable→Official Patch0.0 → 0.0
2026-07-21cve.orginitial, patch: Unavailable0.0
References: CVE.org · NVD · PoC

Affected Software
VendorProductVersion
debiandebian_linux10.0
debiandebian_linux11.0
debiandebian_linux9.0
ffmpegffmpeg4.2
Published: 2021-05-25