NULL pointer dereference in Squirrel-lang Squirrel
CVE-2026-3389
A vulnerability was determined in Squirrel up to 3.2. This vulnerability affects the function sqstd_rex_newnode in the library sqstdlib/sqstdrex.cpp. Executing a manipulation can lead to null pointer dereference. The attack can only be exe…
EPSS: 0.000 (9.3th 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-348275 | Squirrel sqstdrex.cpp sqstd_rex_newnode null pointer dereference (technical-description, Third Party Advisory, VDB Entry, vdb-entry)
- VDB-348275 | CTI Indicators (IOB, IOC, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
- Submit #761315 | albertodemichelis squirrel master-branch NULL Pointer Dereference (Third Party Advisory, VDB Entry, third-party-advisory)
- cna@vuldb.com (issue-tracking, Exploit, Issue Tracking, Vendor Advisory)
- cna@vuldb.com (Exploit, exploit)
Frequently asked questions
- What is CVE-2026-3389?
- CVE-2026-3389 is a low-severity vulnerability in Squirrel-lang Squirrel, classified under Improper Resource Shutdown or Release. CVSS score: 3.3/10. Published 2026-03-01.
- How severe is CVE-2026-3389?
- Low severity. CVSS v3 base score is 3.3 out of 10.