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CVE-2025-52992

13
FAUCET Score

CVE-2025-52992 describes a vulnerability in Nix, Lix, and Guix package managers where improper permission setting during failed builds allows arbitrary processes to modify the store outside the sandbox. This low-severity vulnerability (CVSS 3.2) has a local attack vector with high attack complexity, potentially leading to limited integrity impact. There is no evidence of active exploitation, no public exploit code, and minimal community discussion, though it has received some media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0, < 2.24.15CPE match
cpe:2.3:a:nixos:nix:*:*:*:*:*:*:*:*
>= 2.25.0, < 2.26.4CPE match
cpe:2.3:a:nixos:nix:*:*:*:*:*:*:*:*
>= 2.27.0, < 2.28.4CPE match
cpe:2.3:a:nixos:nix:*:*:*:*:*:*:*:*
>= 2.29.0, < 2.29.1CPE match
cpe:2.3:a:nixos:nix:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

3.2LOW

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.4
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.14%
Probability of exploitation in next 30 days
EPSS Percentile
4.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0014 is in the 5th percentile among its peer group of 747 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

discourse.nixos.org / t/security-advisory-privilege-escalations-in-nix-lix-and-guix/66017
guix.gnu.org / en/blog/2025/privilege-escalation-vulnerabilities-2025
labs.snyk.io
lix.systems / blog/2025-06-24-lix-cves
security.snyk.io / vuln
security-tracker.debian.org / tracker/CVE-2025-52992