CVE-2017-20228
HIGHFlat Assembler 1.71.21 Stack-Based Buffer Overflow ROP
Title source: cnaDescription
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.
Exploits (1)
Scores
CVSS v3
8.4
EPSS
0.0002
EPSS Percentile
6.1%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-787
Status
published
Products (2)
Flatassembler/Flat Assembler
1.71.21
flatassembler/flat_assembler
< 1.71.21
Published
Mar 28, 2026
Tracked Since
Mar 29, 2026