CVE-2025-14933: Unidata Netcdf

High severity, CVSS 7.8. EPSS: 0.4% chance of exploitation in the next 30 days.

NSF Unidata NetCDF-C NC Variable Integer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of NSF Unidata NetCDF-C. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of NC variables. The issue results from the lack of proper validation of user-supplied data, which can result in an integer overflow before allocating a buffer. An attacker can leverage this vulnerability to execute code in the context of the current user. Was ZDI-CAN-27266.

Affected products

• Unidata Netcdf: affected versions not specified

Published 2025-12-23. Last modified 2026-06-17.