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CVE

CWE

Training

CVE-2026-8258

Published: May 11, 2026

Modified: May 11, 2026

PUBLISHED

CVSS v3.1

5.3

MEDIUM

Description

A flaw has been found in Squirrel up to 3.2. Impacted is the function validate_format in the library sqstdlib/sqstdstring.cpp. Executing a manipulation can lead to stack-based buffer overflow. The attack can only be executed locally. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Vendor	Product	Versions
n/a	Squirrel	affected `3.0` affected `3.1` affected `3.2`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

Low

References

VDB-362555 | Squirrel sqstdstring.cpp validate_format stack-based overflow

vdb-entry

technical-description

VDB-362555 | CTI Indicators (IOB, IOC, IOA)

signature

permissions-required

Submit #809873 | albertodemichelis squirrel 3.2 Stack-based Buffer Overflow

third-party-advisory

https://github.com/albertodemichelis/squirrel/issues/325

issue-tracking

https://github.com/biniamf/pocs/tree/main/squirrel-validate_format-memcpy-oob

exploit

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