Is CVE-2026-8261 actively exploited?

No active exploitation of CVE-2026-8261 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-8261 be exploited remotely?

No. CVE-2026-8261 requires local access to exploit.

What is the CVSS score of CVE-2026-8261?

CVE-2026-8261 has a CVSS score of 5.9 (MEDIUM).

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MEDIUM

CVE-2026-8261

CWE-119Published: May 11, 2026· Updated: May 13, 2026

5.9

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:3.7th

Official Description

A vulnerability was determined in Squirrel up to 3.2. This affects the function SQFunctionProto::Load of the file squirrel/sqobject.cpp. This manipulation causes heap-based buffer overflow. The attack is restricted to local execution. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.

NVD Source

Technical Analysis

CVE-2026-8261 requires local access, meaning attackers must already have a foothold on the target system.

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

From a weakness classification perspective (CWE-119): Buffer overflow vulnerabilities can lead to arbitrary code execution or denial of service by corrupting adjacent memory.