CVE-2026-9541
Squirrel Cnut File sqobject.cpp ReadObject heap-based overflow
- State
- Published
- Severity
- 4.8 Medium
- Published
- May 26, 2026
- Updated
- May 26, 2026
- Reserved
- May 26, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 4.8 Medium | 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 | VulDB |
| 3.1 | 5.3 Medium | 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 | VulDB |
| 3.0 | 5.3 Medium | 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 | VulDB |
| 2.0 | 4.3 Medium | AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR | VulDB |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
Squirreln/a |
|
References
- VDB-365602 | Squirrel Cnut File sqobject.cpp ReadObject heap-based overflowvdb-entrytechnical-description
- VDB-365602 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
- Submit #814826 | albertodemichelis squirrel 3.2 Heap-based Buffer Overflowthird-party-advisory
- https://github.com/albertodemichelis/squirrel/issues/327issue-tracking
- https://github.com/biniamf/pocs/tree/main/squirrel-sqobject-readobject-neg-len-oobexploit
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