CVE-2021-47881

HighCVSS 8.4/10Last modified Jun 17, 2026

Description

dataSIMS Avionics ARINC 664-1 version 4.5.3 contains a local buffer overflow vulnerability that allows attackers to overwrite memory by manipulating the milstd1553result.txt file. Attackers can craft a malicious file with carefully constructed payload and alignment sections to potentially execute arbitrary code on the Windows system.

Metrics

CVSS 3.1 8.4/10CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Jan 23, 2026
Last modified
Jun 17, 2026
NVD status
Deferred

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CVE-2021-47881: High severity, CVSS 8.4 | Vulnix