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TI-2026-02925 Aliases CVE-2026-3389GHSA-g9mq-qjc2-8pgx

Squirrel sqstdrex.cpp sqstd_rex_newnode null pointer dereference

Priority MEDIUM 55CWE-404Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-404.

Summary

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 executed locally. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report but has not responded yet.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00188 8th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD and the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Squirrel3.0; 3.1; 3.2—No fix listedCNA
  • Squirrel Vendor— Affected 3.0; 3.1; 3.2 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:squirrel-lang:squirrel:*:*:*:*:*:*:*:*up to 3.2VulnerableSquirrel-lang
  • cpe:2.3:a:squirrel-lang:squirrel:*:*:*:*:*:*:*:* Versions up to 3.2 Vulnerable ·Squirrel-lang

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-3389
  2. 2026-10-03 Alias added: GHSA-g9mq-qjc2-8pgx

References

Exploit 2

  • TI-2021-18293 sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read… CVSS 3.1CRITICAL 10.0
  • TI-2026-08383 Squirrel Cnut File sqobject.cpp ReadObject heap-based overflow CVSS 4.0MEDIUM 4.8
  • TI-2026-02924 Squirrel sqcompiler.cpp UnaryOP recursion CVSS 4.0MEDIUM 4.8
  • TI-2026-02273 Squirrel sqobject.h operator heap-based overflow CVSS 4.0MEDIUM 4.8
  • TI-2026-02271 Squirrel sqfuncstate.cpp PopTarget out-of-bounds CVSS 4.0MEDIUM 4.8
  • TI-2022-12528 Heap-based buffer overflow in sqbaselib.cpp in SQUIRREL 3.2 due to lack of a certain sq_reservestack call. CVSS 3.1CRITICAL 10.0

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences