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High · 8.4 CVE-2017-20228 EUVD-2017-18949

Flat Assembler 1.71.21 Stack-Based Buffer Overflow ROP

Published Mar 28, 2026 · Updated Oct 1, 2026 · Assigned by VulnCheck

Description

Flat Assembler 1.71.21 contains a stack-based buffer overflow vulnerability that allows local attackers to execute arbitrary code by supplying oversized input to the application. Attackers can craft malicious assembly input exceeding 5895 bytes to overwrite the instruction pointer and execute return-oriented programming chains for shell command execution.

Affected products

VendorProductAffectedFixed
Flatassembler Flat Assembler 1.71.21 —

References