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.
Published: 2026-05-11
Score: 4.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Mon, 11 May 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 11 May 2026 02:45:00 +0000

Type Values Removed Values Added
First Time appeared Albertodemichelis
Albertodemichelis squirrel
Vendors & Products Albertodemichelis
Albertodemichelis squirrel

Mon, 11 May 2026 01:30:00 +0000

Type Values Removed Values Added
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.
Title Squirrel sqstdstring.cpp validate_format stack-based overflow
Weaknesses CWE-119
CWE-121
References
Metrics cvssV2_0

{'score': 4.3, 'vector': 'AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 5.3, 'vector': 'CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 5.3, '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'}

cvssV4_0

{'score': 4.8, 'vector': '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'}


Subscriptions

Albertodemichelis Squirrel
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-05-11T12:49:13.713Z

Reserved: 2026-05-10T15:00:09.852Z

Link: CVE-2026-8258

cve-icon Vulnrichment

Updated: 2026-05-11T12:49:08.275Z

cve-icon NVD

Status : Deferred

Published: 2026-05-11T02:16:27.250

Modified: 2026-05-13T14:47:15.150

Link: CVE-2026-8258

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-11T02:30:25Z

Weaknesses