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VULNERABILITIES

CVE-2025-70954 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

A Null Pointer Dereference vulnerability exists in the TON Virtual Machine (TVM) within the TON Blockchain before v2025.06. The issue is located in the execution logic of the INMSGPARAM instruction, where the program fails to validate if a specific pointer is null before accessing it. By sending a malicious transaction or smart contract, an attacker can trigger this null pointer dereference, causing the validator node process to crash (segmentation fault). This results in a Denial of Service (DoS) affecting the availability of the entire blockchain network.

Metrics

CVSS 3.x Severity and Vector Strings:

NDDVolerionCVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA: CISA-ADPCVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://www.tonbit.xyz/blog/post/TonBit-Discovers-Critical-Vulnerability-on-TON-Virtual-Machine-for-the-Third-Time-Once-Again-Receiving-Official-Recognition-from-the-TON-Team.html CISA-ADP
https://gist.github.com/Lucian-code233/04940a264cab50732cc07fd991749226 [email protected]AdvisoryRemedy
https://github.com/ton-blockchain/ton/commit/9e5109d56bc4f2345a00b2271c3711103841b799 [email protected]Source CodeVendor
https://github.com/ton-blockchain/ton/releases/tag/v2025.06#:~:text=AArayz%2C%20wy666444%2C%20Robinlzw%2C%20Lucian-code233 [email protected]
https://mp.weixin.qq.com/s/IbRKrCKdMyIi-azkuqOOvg [email protected]Content WallTechnical Description

Weakness Enumeration

CWE-IDCWE NameSource
CWE-476NULL Pointer DereferenceCISA-ADP

Affected Products

ProductVersions
TON Virtual Machine
All versions

CPE

  • No CPEs found in CPE dictionary for this product.

Remediation

  • No remediation found in references.
TON Blockchain
All versions

CPE

  • No CPEs found in CPE dictionary for this product.

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2025-70954
NVD Published Date:
Feb 13, 2026
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2025-70954 Details - Not Deferred