CVE-2026-123203 (GCVE-0-2026-123203)

Vulnerability from cvelistv5 – Published: 2026-11-05 18:16 – Updated: 2026-11-09 22:30
VLAI
Title
NEURON through 9.0.2 Stack-based Buffer Overflow via CoreNEURON dataset tokens
Summary
NEURON (CoreNEURON) through 9.0.2 contains a stack buffer overflow vulnerability that allows attackers to corrupt stack memory by supplying over-long tokens in a crafted model dataset. Attackers can place oversized version or mechanism-name tokens in bbcore_mech.dat, globals.dat, or files.dat loaded by nrniv-core to crash the process.
Severity
6.9 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
6.1 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-09 22:30 UTC
CWE
  • CWE-121 - Stack-based Buffer Overflow
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
neuronsimulator NEURON Affected: 0 , ≤ 9.0.2 (custom)
    cpe:2.3:a:neuron-ai:neuron:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-29 00:00
Credits
Deus Rex Michael Hines (nrnhines)
Show details on NVD website
To clipboard 

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