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How the CVE Works:
CVE-2025-27172 is an out-of-bounds write vulnerability in Substance3D Designer (versions 14.1 and earlier). When parsing a maliciously crafted file, the software fails to properly validate memory boundaries, allowing an attacker to write data beyond the allocated buffer. This corruption can lead to arbitrary code execution under the current user’s privileges. Exploitation requires user interaction—opening a malicious file triggers the flaw. The vulnerability stems from improper bounds checking during file processing, enabling heap/stack manipulation.
DailyCVE Form:
Platform: Substance3D Designer
Version: ≤ 14.1
Vulnerability: Out-of-bounds write
Severity: Critical
Date: 04/28/2025
What Undercode Say:
Analytics:
- Attack Vector: Local (user-assisted)
- Exploitability: High (low complexity)
- Impact: Code execution, data corruption
Exploit Commands:
1. Craft malicious `.sbs` file with overflow payload:
with open("exploit.sbs", "wb") as f:
f.write(b"\x41" 2048 + b"\x90\x90\xCC") Buffer + shellcode
2. Social engineering to lure victim into opening the file.
Protection Commands:
1. Patch check (Windows):
Get-ItemProperty "HKLM:\SOFTWARE\Adobe\Substance3D\Designer" | Select-Object Version
2. Mitigation: Disable opening untrusted `.sbs` files via GPO:
Windows Registry Editor Version 5.00 [HKEY_CLASSES_ROOT.sbs] "Content Type"="disabled"
Code Snippets:
- Detection (Python):
import pefile def check_bounds_handling(binary): pe = pefile.PE(binary) return any("memcpy" in entry.name.decode() for entry in pe.DIRECTORY_ENTRY_IMPORT)
References:
- Apply Adobe patch ≥ v14.2.
- Use memory-safe languages for file parsers.
- Audit third-party file processors.
No additional commentary.
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
