CVE-2025-14933 · Severity: high · CVSS 7.8 · Published 2025-12-23
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.
No. Junglewise Threat Intelligence has no report of CVE-2025-14933 being exploited in the wild.
How severe is CVE-2025-14933?
High severity, with a CVSS score of 7.8, published 23 December 2025.
Which products and versions are affected?
Unidata Netcdf. The advisory does not name versions.
Is there a fix for CVE-2025-14933?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-14933?
Check whether you run Unidata Netcdf. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.