TI-2025-13620 Aliases CVE-2025-14934 GHSA-cxvx-7fc3-h99x

Stack-based buffer overflow in NSF Unidata NetCDF-C

LOW 36CWE-121Published 2025-12-23 · Updated 2025-12-26

Key facts

Attack vector: Local
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.

Summary

NSF Unidata NetCDF-C Variable Name Stack-based Buffer 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 variable names. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current user. Was ZDI-CAN-27267.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00351 28th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
NSF Unidata	NetCDF-C	dbe0cbb	—	No fix listed	CNA

NetCDF-C VendorNSF Unidata Affected dbe0cbb Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:unidata:netcdf:-:::::::*	not specified by NVD	Vulnerable	NSF Unidata

cpe:2.3:a:unidata:netcdf:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NSF Unidata

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2025-14934
2026-10-03 Alias added: GHSA-cxvx-7fc3-h99x

References

Advisory 1

ZDI-25-1152

TI-2025-13622 Stack-based buffer overflow in NSF Unidata NetCDF-C CVSS 3.0HIGH 7.8
TI-2025-13621 Heap-based buffer overflow in NSF Unidata NetCDF-C CVSS 3.0HIGH 7.8
TI-2025-13619 Integer overflow in NSF Unidata NetCDF-C CVSS 3.0HIGH 7.8
TI-2025-13618 Stack-based buffer overflow in NSF Unidata NetCDF-C CVSS 3.0HIGH 7.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences