Bug 2567746 (CVE-2026-123203) - CVE-2026-123203 neuron: neuron: Denial of Service via crafted model dataset
Summary: CVE-2026-123203 neuron: neuron: Denial of Service via crafted model dataset
Keywords:
Status: NEW
Alias: CVE-2026-123203
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-05 22:22 UTC by OSIDB Bzimport
Modified: 2026-11-06 01:00 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-11-05 22:22:54 UTC 
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.
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