Is CVE-2026-4963 actively exploited?

No active exploitation of CVE-2026-4963 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-4963 be exploited remotely?

Yes. CVE-2026-4963 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-4963?

CVE-2026-4963 has a CVSS score of 6.3 (MEDIUM).

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MEDIUM

CVE-2026-4963

CWE-74Published: March 27, 2026· Updated: Mar 30, 2026

6.3

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:2.3th

Official Description

A weakness has been identified in huggingface smolagents 1.25.0.dev0. This affects the function evaluate_augassign/evaluate_call/evaluate_with of the file src/smolagents/local_python_executor.py of the component Incomplete Fix CVE-2025-9959. This manipulation causes code injection. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

NVD Source

Technical Analysis

CVE-2026-4963 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.