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.
History

Fri, 13 Feb 2026 21:45:00 +0000

Type Values Removed Values Added
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.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-02-13T21:22:03.090Z

Reserved: 2026-01-09T00:00:00.000Z

Link: CVE-2025-70954

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-02-13T22:16:10.047

Modified: 2026-02-13T22:16:10.047

Link: CVE-2025-70954

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.