Cyber Resilience

CVE-2020-7873

High

Published: 09 September 2021

Published
09 September 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0023 46.4th percentile
Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2020-7873 is a high-severity Download of Code Without Integrity Check (CWE-494) vulnerability in Ksystem K-System Wellcomm. Its CVSS base score is 8.8 (High).

Operationally, ranked at the 46.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Download of code without integrity check vulnerability in ActiveX control of Younglimwon Co., Ltd allows the attacker to cause a arbitrary file download and execution.

CWE(s)

Related Threats

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

Affected Assets

ksystem
k-system wellcomm
1.1, 4.0

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.

addresses: CWE-494

Policies can require integrity verification of software prior to installation, reducing risks from unverified downloads.

addresses: CWE-494

Blocks installation of components lacking a valid signature, mitigating download or installation of code without integrity checks.

addresses: CWE-494

Acquisition and maintenance portions of the strategy drive requirements for integrity verification of downloaded or supplied code.

addresses: CWE-494

Mandating integrity control and approved-only changes during development prevents incorporation of code or components lacking integrity validation.

addresses: CWE-494

Supply chain protection requires integrity verification of acquired components, directly reducing insertion or tampering of malicious code during delivery.

addresses: CWE-494

Reduces exposure to code obtained without integrity verification by requiring assurance processes that confirm authenticity and absence of tampering.

addresses: CWE-494

Tamper resistance and detection commonly include integrity verification of code and firmware obtained from external sources.

addresses: CWE-494

Component authenticity requires verifying origin/integrity of acquired firmware or software, directly preventing inclusion of code without integrity checks.

References