PT-2026-8035 · Unknown · Ton Virtual Machine+1

Published 2026-02-13 · Updated 2026-02-14 · CVE-2025-70954

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions TON Blockchain versions prior to 2025.06

Description A flaw exists in the TON Virtual Machine (TVM) within the TON Blockchain. The issue resides in the execution logic of the INMSGPARAM instruction, where the program does not validate if a pointer is null before accessing it. An attacker can trigger a null pointer dereference by sending a malicious transaction or smart contract. This can cause the validator node process to crash, resulting in a Denial of Service (DoS) and impacting the availability of the blockchain network.

Recommendations Update to version 2025.06 or later.

Exploit

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2025-70954

Affected Products

Ton Blockchain

Ton Virtual Machine

References · 11

• 🔥 https://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 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-70954 · Security Note
• https://osv.dev/vulnerability/CVE-2025-70954 · Vendor Advisory
• https://github.com/ton-blockchain/ton/releases/tag/v2025.06#:~:text=AArayz%2C%20wy666444%2C%20Robinlzw%2C%20Lucian-code233 · Note
• https://github.com/ton-blockchain/ton/commit/9e5109d56bc4f2345a00b2271c3711103841b799 · Note
• https://t.me/cveNotify/152010 · Telegram Post
• https://gist.github.com/Lucian-code233/04940a264cab50732cc07fd991749226 · Note
• https://twitter.com/CVEnew/status/2022428989223244245 · Twitter Post
• https://mp.weixin.qq.com/s/IbRKrCKdMyIi-azkuqOOvg · Note
• https://twitter.com/VulmonFeeds/status/2022517378236424409 · Twitter Post
• https://t.me/CVEtracker/44665 · Telegram Post