CVE-2025-14933: NSF Unidata NetCDF-C NC Variable Integer Overflow Remote Code Execution Vulnerability

Routine

HIGH 7.8MITIGATE

CVE-2025-14933 is a high-severity flaw (CVSS 7.8) affecting netcdf. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 validat

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 71%)
CISA exploited list	No
Weakness	CWE-190
Published	2025-12-23
Last modified	2026-10-19

Publisher (CNA): Zero Day Initiative · Vendor: unidata

Last updated 2026-10-19 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-12-23 21:15 UTCPublished CVE record published
2026-10-19 22:10 UTCUpdated Record last modified

unidata netcdf MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy netcdf || rpm -q netcdf || netcdf --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-14933?

netcdf: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-14933 being exploited?

CVE-2025-14933 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-14933 affect?

CVE-2025-14933 affects netcdf. Severity is high (CVSS 7.8). 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 e

How urgent is CVE-2025-14933?

Priority 35/100. High severity

Related CVEs

CVE-2025-14932 HIGH 7.8 MITIGATE NSF Unidata NetCDF-C Time Unit Stack-based Buffer Overflow Remote Code Execution Vulnerability
CVE-2025-14934 HIGH 7.8 MITIGATE NSF Unidata NetCDF-C Variable Name Stack-based Buffer Overflow Remote Code Execution Vulnerability
CVE-2025-14935 HIGH 7.8 MITIGATE NSF Unidata NetCDF-C Dimension Name Heap-based Buffer Overflow Remote Code Execution Vulnerability
CVE-2025-14936 HIGH 7.8 MITIGATE NSF Unidata NetCDF-C Attribute Name Stack-based Buffer Overflow Remote Code Execution Vulnerability

References

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