Cyber Resilience

CVE-2020-21427

High

Published: 22 August 2023

Published
22 August 2023
Modified
05 May 2025
KEV Added
—
Patch
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CVSS Score v3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0124 79.7th percentile
Risk Priority 16 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2020-21427 is a high-severity Classic Buffer Overflow (CWE-120) vulnerability in Freeimage Project Freeimage. Its CVSS base score is 7.8 (High).

Operationally, ranked in the top 20.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Buffer Overflow vulnerability in function LoadPixelDataRLE8 in PluginBMP.cpp in FreeImage 3.18.0 allows remote attackers to run arbitrary code and cause other impacts via crafted image file.

CWE(s)
CWE-120

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

freeimage project
freeimage
3.18.0

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SC-27 Platform-independent Applications
addresses: CWE-120

Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.

References