CVE-2013-1633

Name: CVE-2013-1633
Creator: NVD / NIST
Published: 2013-08-06T02:52:10.333+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.95%

Last modified Jun 16, 2026

CVE-2013-1633 is a vulnerability of currently unknown severity. easy_install in setuptools before 0.7 uses HTTP to retrieve packages from the PyPI repository, and does not perform integrity checks on package contents, which allows man-in-the-middle attackers to execute arbitrary code via a crafted response to the default use of the product.. EPSS estimates a 1.95% chance of exploitation in the next 30 days.

Description

easy_install in setuptools before 0.7 uses HTTP to retrieve packages from the PyPI repository, and does not perform integrity checks on package contents, which allows man-in-the-middle attackers to execute arbitrary code via a crafted response to the default use of the product.

Metrics

EPSS Probability

1.95%

77.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Python	Setuptools	<= 0.7b4
Python	Setuptools	0.6.40
Python	Setuptools	0.6.41
Python	Setuptools	0.6.42
Python	Setuptools	0.6.43
Python	Setuptools	0.6.44
Python	Setuptools	0.6.45
Python	Setuptools	0.6.46
Python	Setuptools	0.6.47
Python	Setuptools	0.6.48
Python	Setuptools	0.6.49

References

Timeline

Published: Aug 6, 2013
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2013-1633?

How severe is CVE-2013-1633?

Severity scoring for CVE-2013-1633 is pending analysis. The EPSS model estimates a 1.95% probability of exploitation in the next 30 days.

How do I fix CVE-2013-1633?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2013-1633?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST