CVE-2021-47881

MEDIUM EPSS 4.4%
Published Jan 23, 20265mo ago · Modified Jun 17, 20261w ago
6.7 CVSS 4.0
Medium
Find Similar
Published Jan 23, 2026 5mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
6.7
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction A
Scope X

Threat Intelligence

EPSS Exploit Probability
4.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-121

References 4

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.