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How the CVE Works
The vulnerability arises due to improper bounds checking when loading ExecuTorch methods. A crafted input can trigger a heap-based buffer overflow, corrupting adjacent memory. Attackers can exploit this to crash the runtime or execute arbitrary code by overwriting critical heap structures. The flaw exists in the method-loading logic, where unchecked data sizes lead to out-of-bounds writes. Successful exploitation requires loading a malicious model file, potentially enabling remote code execution (RCE) or denial-of-service (DoS).
DailyCVE Form
Platform: ExecuTorch
Version: Pre-commit 93b1a0c
Vulnerability: Heap overflow
Severity: High
Date: Jul 11, 2025
Prediction: Patch by Aug 1, 2025
What Undercode Say
Check vulnerable version executorch --version Debug crash trigger gdb --args executorch load_malicious_model.pte Fuzzing command afl-fuzz -i input_models -o crashes ./executorch @@
How Exploit
1. Craft malicious PTE file.
2. Overflow heap via oversized method data.
3. Overwrite function pointers.
4. Gain code execution.
Protection from this CVE
- Update to post-commit 93b1a0c.
- Enable ASLR.
- Validate model inputs.
Impact
- RCE/DoS.
- Memory corruption.
- System compromise.
Sources:
Reported By: github.com
Extra Source Hub:
Undercode
