CVEvulnerability

CVE-2017-20228

8.6 HIGH Published 2026-03-28 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-03-28
Last modified
2026-06-17
Assigner
[email protected]
CVSS 4.0 ([email protected])
8.6 HIGH — CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/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
CVSS 3.1 ([email protected])
8.4 HIGH — CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-787

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 configurations

• flatassembler flat assembler (<= 1.71.21)

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References