CVE-2025-70954

CVSS 7.5 HIGHEPSS 0.6%CWE-476

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.5EPSS 0.6%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

13 Feb 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

n/a · n/a

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References

https://gist.github.com/Lucian-code233/04940a264cab50732cc07fd991749226 https://github.com/ton-blockchain/ton/commit/9e5109d56bc4f2345a00b2271c3711103841b799 https://github.com/ton-blockchain/ton/releases/tag/v2025.06#:~:text=AArayz%2C%20wy666444%2C%20Robinlzw%2C%20Lucian-code233 https://mp.weixin.qq.com/s/IbRKrCKdMyIi-azkuqOOvg 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