CVE-2025-14934CWE-121CWE-787

CVE-2025-14934

High · published December 24, 2025

CVSS v3.0
7.8
EPSS
0%
Percentile
27.6
In the wild
Unconfirmed
What it is

⚡ A sneaky stack-based buffer overflow is lurking in NSF Unidata NetCDF-C, waiting for users to take a wrong step! 🛑 Think of it like a restaurant with a menu that allows for orders of any size—if a diner places an order that's way too big, it can spill over and mess up the entire kitchen. In this case, the malicious variable names can overflow the buffer, leading to chaos in the system! An attacker could exploit this vulnerability to execute arbitrary code in the context of the user, effectively taking control of their environment. This could lead to anything from data theft to total system compromise, turning a routine visit to a webpage into a nightmare scenario!

Put simply

Think of it like a restaurant with a menu that allows for orders of any size—if a diner places an order that's way too big, it can spill over and mess up the entire kitchen. In this case, the malicious variable names can overflow the buffer, leading to chaos in the system! The vulnerability arises from inadequate validation of user-supplied variable names before they're copied to a fixed-length stack buffer, allowing for potential code execution by an attacker.

What to do

An attacker could exploit this vulnerability to execute arbitrary code in the context of the user, effectively taking control of their environment. This could lead to anything from data theft to total system compromise, turning a routine visit to a webpage into a nightmare scenario! To protect yourself, ensure you update your NSF Unidata NetCDF-C installations to the latest version that includes the fix for this vulnerability. Also, educate users about the risks of opening unknown files or visiting suspicious links. Stay vigilant! You've got this! Tackle this vulnerability head-on and keep your systems secure! 🛡️

The record
Technical detail
CVSS v3.0
7.8 · HIGH
Vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00351 · 27.6th percentile
Weaknesses
CWE-121 · Stack-based Buffer Overflow; CWE-787 · Out-of-bounds Write
Published
2025-12-24T02:15Z
Affected products (1)
ProductVersionsFixed in
unidata/netcdfall versions—
References (1)
EPSS history
Timeline
  • 23 DEC 21:09Z
    NSF Unidata NetCDF-C Variable Name Stack-based Buffer Overflow Remote Code Execution Vulnerability
    cvelistv5