How severe is CVE-2025-53819?

CVE-2025-53819 has a CVSS 3.x base score of 7.9, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.

Is CVE-2025-53819 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-53819?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-53819 have an EU (EUVD) identifier?

Yes. CVE-2025-53819 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-21392.

When was CVE-2025-53819 published?

CVE-2025-53819 was published on 2025-07-14 and last updated on 2026-06-17.

CVE-2025-53819

CVE-2025-53819 is a high-severity vulnerability with a CVSS 3.x base score of 7.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-271.

Key facts

Severity: High (CVSS 3.x base score 7.9)
EPSS exploit prediction: 0% (2nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-21392
Weakness: CWE-271
Published: 2025-07-14
Last modified: 2026-06-17

Description

Nix is a package manager for Linux and other Unix systems. Builds with Nix 2.30.0 on macOS were executed with elevated privileges (root), instead of the build users. The fix was applied to Nix 2.30.1. No known workarounds are available.

Frequently asked questions

What is CVE-2025-53819?: Nix is a package manager for Linux and other Unix systems. Builds with Nix 2.30.0 on macOS were executed with elevated privileges (root), instead of the build users. The fix was applied to Nix 2.30.1. No known workarounds are available.
How severe is CVE-2025-53819?: CVE-2025-53819 has a CVSS 3.x base score of 7.9, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity high, and availability low.
Is CVE-2025-53819 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (2nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-53819?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-53819 have an EU (EUVD) identifier?: Yes. CVE-2025-53819 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-21392.
When was CVE-2025-53819 published?: CVE-2025-53819 was published on 2025-07-14 and last updated on 2026-06-17.

References

Other CWE-271 vulnerabilities

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