Buffer overflow in Squirrel-lang Squirrel
CVE-2026-2661
A security flaw has been discovered in Squirrel up to 3.2. This affects the function SQObjectPtr::operator in the library squirrel/sqobject.h. The manipulation results in heap-based buffer overflow. The attack needs to be approached locall…
Vulnerability class: Buffer Overflow
EPSS: 0.000 (1.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
Affected products
- Squirrel-lang Squirrel
- N/a Squirrel — versions 3.0, 3.1, 3.2
Weakness classification (CWE)
References
- VDB-346459 | Squirrel sqobject.h operator heap-based overflow (technical-description, Third Party Advisory, VDB Entry, vdb-entry)
- VDB-346459 | CTI Indicators (IOB, IOC, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
- Submit #753165 | albertodemichelis squirrel master-branch Heap-based Buffer Overflow (Third Party Advisory, VDB Entry, third-party-advisory)
- cna@vuldb.com (issue-tracking, Exploit, Issue Tracking)
- cna@vuldb.com (Exploit, exploit)
Frequently asked questions
- What is CVE-2026-2661?
- CVE-2026-2661 is a low-severity vulnerability in Squirrel-lang Squirrel, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 3.3/10. Published 2026-02-18.
- How severe is CVE-2026-2661?
- Low severity. CVSS v3 base score is 3.3 out of 10.