CVE-2017-20228
High
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.
SeverityHigh
CVSS8.4
Exploit probability—
ProductFlatassembler Flat Assembler
PublishedMar 28, 2026
First seenMar 28, 2026
Weakness typeCWE-787Out-of-bounds write
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| flatassembler flat_assembler | v ≤ 1.71.21 | — |
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