{"cve":"CVE-2025-70954","nvd":{"published":"2026-02-13T22:16:10.047","modified":"2026-06-17T10:03:28.380","status":"Deferred","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-476"],"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"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:23:35.260773158+00:00"},"epss":{"cve":"CVE-2025-70954","score":0.00624,"percentile":0.49958,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}