CVE-2026-8258: Stack-based Buffer Overflow in Squirrel
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.
AI Analysis
Technical Summary
This vulnerability involves a stack-based buffer overflow in the validate_format function of Squirrel versions 3.0 through 3.2. The issue arises from improper handling of input leading to potential memory corruption on the stack. The attack vector is local, requiring the attacker to have local access with low privileges. The vulnerability has a CVSS 4.8 (medium) score, indicating limited impact and exploitability. No official remediation or patch has been released as of the publication date, and the vendor has not responded to the issue report.
Potential Impact
Successful exploitation can cause a stack-based buffer overflow, potentially leading to application crashes or arbitrary code execution with local privileges. However, the attack cannot be executed remotely and requires local access with low privileges. There are no known active exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or vendor response is available, users should restrict local access to trusted users only and monitor for updates from the Squirrel project. Avoid running untrusted code locally in affected versions until a patch is released.
CVE-2026-8258: Stack-based Buffer Overflow in Squirrel
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.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a stack-based buffer overflow in the validate_format function of Squirrel versions 3.0 through 3.2. The issue arises from improper handling of input leading to potential memory corruption on the stack. The attack vector is local, requiring the attacker to have local access with low privileges. The vulnerability has a CVSS 4.8 (medium) score, indicating limited impact and exploitability. No official remediation or patch has been released as of the publication date, and the vendor has not responded to the issue report.
Potential Impact
Successful exploitation can cause a stack-based buffer overflow, potentially leading to application crashes or arbitrary code execution with local privileges. However, the attack cannot be executed remotely and requires local access with low privileges. There are no known active exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or vendor response is available, users should restrict local access to trusted users only and monitor for updates from the Squirrel project. Avoid running untrusted code locally in affected versions until a patch is released.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-05-10T15:00:09.852Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a012f49cbff5d86103ef69b
Added to database: 5/11/2026, 1:22:17 AM
Last enriched: 5/11/2026, 1:36:33 AM
Last updated: 5/11/2026, 2:40:00 AM
Views: 3
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