CVE-2025-70954
Null Pointer Dereference in TON VM Causes Blockchain DoS
Publication date: 2026-02-13
Last updated on: 2026-02-17
Assigner: MITRE
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| ton_blockchain | ton_virtual_machine | to 2025.06 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-476 | The product dereferences a pointer that it expects to be valid but is NULL. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is a Null Pointer Dereference in the TON Virtual Machine (TVM) within the TON Blockchain before version 2025.06. It occurs in the execution logic of the INMSGPARAM instruction, where the program does not check if a pointer is null before trying to access it.
An attacker can exploit this by sending a malicious transaction or smart contract that triggers this null pointer dereference, causing the validator node process to crash with a segmentation fault.
How can this vulnerability impact me? :
Exploiting this vulnerability causes the validator node process to crash, resulting in a Denial of Service (DoS).
This DoS affects the availability of the entire blockchain network, potentially disrupting services that rely on the TON Blockchain.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know