EUVD-2026-31813
GHSA-w3m6-w27h-v4g9
Severity by source
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
3DescriptionCVE.org
A security flaw has been discovered in Squirrel up to 3.2. Impacted is the function ReadObject of the file squirrel/sqobject.cpp of the component Cnut File Handler. Performing a manipulation results in heap-based buffer overflow. The attack is only possible with local access. The exploit has been released to the public and may be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
AnalysisAI
Heap-based buffer overflow in Squirrel versions 3.0 through 3.2 allows a locally authenticated low-privilege attacker to corrupt heap memory by supplying a malicious Cnut file to the ReadObject function in sqobject.cpp. The impact is limited to partial confidentiality, integrity, and availability effects with no scope change, as confirmed by the CVSS 4.0 score of 1.9. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation strictly requires local system access and at minimum low-privilege credentials, as confirmed by the CVSS:4.0 vector AV:L/PR:L. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Multiple intelligence signals converge on a consistently low-risk assessment. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A low-privilege local user on a system running an application that embeds the Squirrel scripting engine prepares a malformed Cnut file containing a crafted negative or oversized length field targeting the ReadObject function. The user supplies this file to the application - for example, by placing it in a directory monitored by a game modding loader or scripting pipeline - and upon parsing, the ReadObject function in sqobject.cpp writes beyond the bounds of a heap buffer, corrupting adjacent memory. … |
| Remediation | No vendor-released patch has been identified at time of analysis. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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