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Vulnerabilities ›

CVE-2021-47881

High

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

CWE-121 — Weakness Type

                    Published: Jan 23, 2026                      ·  Modified: Feb 28, 2026                      ·  Source: NVD                

CVSS v3

8.4

🔗 NVD Official

📄 Description (English)

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.

🤖

Queued for AI Analysis

This CVE will be auto-analyzed on the next cron run.

🔗 References & Sources 4

https://www.ddc-web.com/

disclosure@vulncheck.com

https://www.ddc-web.com/en/connectivity/databus/milstd1553-1/software-1/bu-69414?partNu...

disclosure@vulncheck.com

https://www.exploit-db.com/exploits/49577

disclosure@vulncheck.com

https://www.vulncheck.com/advisories/datasims-avionics-arinc-local-buffer-overflow

disclosure@vulncheck.com

📊 CVSS Score

8.4

/ 10.0 — High

📊 CVSS Vector

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

Attack VectorL — Low / Local

Attack ComplexityL — Low / Local

Privileges RequiredN — None / Network

User InteractionN — None / Network

ScopeU — Unchanged

ConfidentialityH — High

IntegrityH — High

AvailabilityH — High

📋 Quick Facts

Severity High

CVSS Score8.4

CWECWE-121

EPSS0.02%

Exploit No

Patch ✓ Yes

Published 2026-01-23

Source Feed nvd

Views 1

🏷️ Tags

CWE-121

⚡ Actions

🔗 NVD Official Page ⚡ Exploit-DB Search 🐙 GitHub PoC Search 🎯 MITRE ATT&CK 📊 CVE Details

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