CVE-2021-47881

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.

CVSS v3 8.4 HIGH

8.4^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.5 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.ddc-web.com/
https://www.ddc-web.com/en/connectivity/databus/milstd1553-1/software-1/bu-69414?partNumber=BU-69414
https://www.exploit-db.com/exploits/49577
https://www.vulncheck.com/advisories/datasims-avionics-arinc-local-buffer-overflow

Configurations

No configuration.

History

23 Jan 2026, 17:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-01-23 17:15

Updated : 2026-01-26 15:03

NVD link : CVE-2021-47881

Mitre link : CVE-2021-47881

CVE.ORG link : CVE-2021-47881

JSON object : View

Products Affected

No product.

CWE

CWE-121

Stack-based Buffer Overflow

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