Is CVE-2025-70955 actively exploited?

No active exploitation of CVE-2025-70955 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2025-70955 be exploited remotely?

Yes. CVE-2025-70955 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2025-70955?

CVE-2025-70955 has a CVSS score of 7.5 (HIGH) and an EPSS exploitation probability of 0.02%.

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HIGH

CVE-2025-70955

Published: February 13, 2026· Updated: Feb 18, 2026

7.5

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:5.7th

Official Description

A Stack Overflow vulnerability was discovered in the TON Virtual Machine (TVM) before v2024.10. The vulnerability stems from the improper handling of vmstate and continuation jump instructions, which allow for continuous dynamic tail calls. An attacker can exploit this by crafting a smart contract with deeply nested jump logic. Even within permissible gas limits, this nested execution exhausts the host process's stack space, causing the validator node to crash. This results in a Denial of Service (DoS) for the TON blockchain network.

NVD Source

Technical Analysis

CVE-2025-70955 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.