Is CVE-2024-27297 in the CISA KEV catalog?

No. CVE-2024-27297 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2024-27297?

CVE-2024-27297 has a CVSS v3 base score of 6.3 (MEDIUM).

What is the EPSS score for CVE-2024-27297?

CVE-2024-27297 has an EPSS score of 0.59% (44th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2024-27297?

Upgrade guix on debian 11 to 1.2.0-4+deb11u2 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2024-27297

MEDIUM

6.3

CVSS v3

NVD

Description

Nix is a package manager for Linux and other Unix systems. A fixed-output derivations on Linux can send file descriptors to files in the Nix store to another program running on the host (or another fixed-output derivation) via Unix domain sockets in the abstract namespace. This allows to modify the output of the derivation, after Nix has registered the path as "valid" and immutable in the Nix database. In particular, this allows the output of fixed-output derivations to be modified from their expected content. This issue has been addressed in versions 2.3.18 2.18.2 2.19.4 and 2.20.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.

CWE-367TOCTOU Race Condition

How to fix

Remediation Available

guixDebian

Fixed in:1.2.0-4+deb11u2CVE-2024-27297

Fixed in:1.4.0-6CVE-2024-27297

nixUbuntu

Fixed in:2.6.0+dfsg-3ubuntu0.1~esm1USN-7633-1

Fixed in:2.18.1+dfsg-1ubuntu5+esm2USN-7633-1

nix-binUbuntu

Fixed in:2.6.0+dfsg-3ubuntu0.1~esm1USN-7633-1

Fixed in:2.18.1+dfsg-1ubuntu5+esm2USN-7633-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorAdjacent

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityLow

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

Exploit Intelligence

0.59%probability of exploitation in 30 days

44thpercentile

Moderate risk: more likely to be exploited than 44% of all known CVEs.

References

Patch1

github.com

Exploit1

hackmd.io

Vendor Advisory1

github.com

Other references1

guix.gnu.org

Related Vulnerabilities

Other CWE-367 (TOCTOU Race Condition) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-36980	High	8.1	83%	-	Fix
CVE-2024-30088	High	7.0	68%	KEV + Ransom	Fix
CVE-2004-0594	Medium	5.1	55%	-	Fix
CVE-2024-50379	Critical	9.8	44%	-	Fix
CVE-2023-38146	High	8.8	39%	-	Fix
CVE-2024-0132	Critical	9.0	37%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-06-27.