How severe is CVE-2025-47273?

CVE-2025-47273 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-47273 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-47273?

CVE-2025-47273 primarily affects Python Setuptools. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-47273?

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-2025-47273 have an EU (EUVD) identifier?

Yes. CVE-2025-47273 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-15591.

When was CVE-2025-47273 published?

CVE-2025-47273 was published on 2025-05-17 and last updated on 2026-06-17.

CVE-2025-47273

CVE-2025-47273 is a high-severity vulnerability in Python Setuptools with a CVSS 3.x base score of 8.8. 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-22.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 7.7
EPSS exploit prediction: 1% (71st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-15591
Weakness: CWE-22
Affected product: Python Setuptools
Published: 2025-05-17
Last modified: 2026-06-17

Description

setuptools is a package that allows users to download, build, install, upgrade, and uninstall Python packages. A path traversal vulnerability in `PackageIndex` is present in setuptools prior to version 78.1.1. An attacker would be allowed to write files to arbitrary locations on the filesystem with the permissions of the process running the Python code, which could escalate to remote code execution depending on the context. Version 78.1.1 fixes the issue.

Frequently asked questions

What is CVE-2025-47273?: setuptools is a package that allows users to download, build, install, upgrade, and uninstall Python packages. A path traversal vulnerability in `PackageIndex` is present in setuptools prior to version 78.1.1. An attacker would be allowed to write files to arbitrary locations on the filesystem with the permissions of the process running the Python code, which could escalate to remote code execution depending on the context. Version 78.1.1 fixes the issue.
How severe is CVE-2025-47273?: CVE-2025-47273 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-47273 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (71st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-47273?: CVE-2025-47273 primarily affects Python Setuptools. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-47273?: 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-2025-47273 have an EU (EUVD) identifier?: Yes. CVE-2025-47273 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-15591.
When was CVE-2025-47273 published?: CVE-2025-47273 was published on 2025-05-17 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:python:setuptools:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

More vulnerabilities in Python Setuptools

CVE-2013-1633 — Medium (CVSS 6.8): easy_install in setuptools before 0.7 uses HTTP to retrieve packages from the PyPI repository, and does not perform…
CVE-2022-40897 — Medium (CVSS 5.9): Python Packaging Authority (PyPA) setuptools before 65.5.1 allows remote attackers to cause a denial of service via…

All CVEs affecting Python Setuptools →

Other CWE-22 (Path Traversal) vulnerabilities

CVE-2026-48282 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Limitation of a Pathname to a Restricted…
CVE-2026-54917 — Critical (CVSS 10.0): SeaweedFS is a distributed storage system for object storage (S3), file systems, and Iceberg tables. Prior to 4.30, the…
CVE-2026-11429 — Critical (CVSS 10.0): Two endpoints in the Vault Service ScriptsController, shared by Altium Enterprise Server and Altium 365, accept file…
CVE-2026-34909 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit a Path Traversal vulnerability found in UniFi OS devices to…
CVE-2026-7411 — Critical (CVSS 10.0): In Eclipse BaSyx Java Server SDK versions prior to 2.0.0-milestone-10, inadequate path normalization in the Submodel…
CVE-2026-36767 — Critical (CVSS 10.0): A path traversal vulnerability in the /content/images/add endpoint of shopizer v3.2.5 allows attackers write arbitrary…

Browse all CWE-22 (Path Traversal) vulnerabilities →