CVE-2017-20228

HIGH

8.4

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.

CVE Details

CVSS v3.1 Score8.4

SeverityHIGH

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

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published3/28/2026

Last Modified4/2/2026

Sourcenvd

Honeypot Sightings0

Affected Products

flatassembler:flat_assembler

Weaknesses (CWE)

CWE-787

References

http://www.flatassembler.net(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/42265(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/flat-assembler-stack-based-buffer-overflow-rop(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.