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CVE-2014-1859

Numpy arbitrary file write via symlink attack

5.5 MediumFix available

(1) core/tests/test_memmap.py, (2) core/tests/test_multiarray.py, (3) f2py/f2py2e.py, and (4) lib/tests/test_io.py in NumPy before 1.8.1 allow local users to write to arbitrary files via a symlink attack on a temporary file.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
High
Availability
None

Exploit likelihood

0.47%Down 0.8 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used5.5

(1) core/tests/test_memmap.py, (2) core/tests/test_multiarray.py, (3) f2py/f2py2e.py, and (4) lib/tests/test_io.py in NumPy before 1.8.1 allow local users to write to arbitrary files via a symlink attack on a temporary file.

Record
CVE-2014-1859
CVSS 3.0
5.5 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0
2.1 LowAV:L/AC:L/Au:N/C:N/I:P/A:N
Weakness
CWE-59
Updated
2026-11-02
CVE ListNo score

(1) core/tests/test_memmap.py, (2) core/tests/test_multiarray.py, (3) f2py/f2py2e.py, and (4) lib/tests/test_io.py in NumPy before 1.8.1 allow local users to write to arbitrary files via a symlink attack on a temporary file.

Record
CVE-2014-1859
Updated
2026-11-02
EUVDEUVD-2018-0108No score

(1) core/tests/test_memmap.py, (2) core/tests/test_multiarray.py, (3) f2py/f2py2e.py, and (4) lib/tests/test_io.py in NumPy before 1.8.1 allow local users to write to arbitrary files via a symlink attack on a temporary file.

Record
EUVD-2018-0108
Updated
2026-11-03
GitHub AdvisoriesGHSA-2fc2-6r4j-p65h7.1

Numpy arbitrary file write via symlink attack

(1) core/tests/test_memmap.py, (2) core/tests/test_multiarray.py, (3) f2py/f2py2e.py, and (4) lib/tests/test_io.py in NumPy before 1.8.1 allow local users to write to arbitrary files via a symlink attack on a temporary file.

Record
GHSA-2fc2-6r4j-p65h
CVSS 4.0
7.1 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS 3.0
5.5 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-59
Updated
2026-11-02
OSV5.5

(1) core/tests/test_memmap.py, (2) core/tests/test_multiarray.py, (3) f2py/f2py2e.py, and (4) lib/tests/test_io.py in NumPy before 1.8.1 allow local users to write to arbitrary files via a symlink attack on a temporary file.

Record
CVE-2014-1859
CVSS 3.0
5.5 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Updated
2026-11-02
OSVGHSA-2fc2-6r4j-p65h7.1

Numpy arbitrary file write via symlink attack

(1) core/tests/test_memmap.py, (2) core/tests/test_multiarray.py, (3) f2py/f2py2e.py, and (4) lib/tests/test_io.py in NumPy before 1.8.1 allow local users to write to arbitrary files via a symlink attack on a temporary file.

Record
GHSA-2fc2-6r4j-p65h
CVSS 4.0
7.1 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS 3.0
5.5 MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Weakness
CWE-59
Updated
2026-11-02
OSVMGASA-2014-0089No score

Updated python-numpy packages fix security vulnerabilities

f2py insecurely used a temporary file. A local attacker could use this flaw to perform a symbolic link attack to modify an arbitrary file accessible to the user running f2py (CVE-2014-1858, CVE-2014-1859).

Record
MGASA-2014-0089
Updated
2026-11-02
OSVPYSEC-2018-34No score

(1) core/tests/test_memmap.py, (2) core/tests/test_multiarray.py, (3) f2py/f2py2e.py, and (4) lib/tests/test_io.py in NumPy before 1.8.1 allow local users to write to arbitrary files via a symlink attack on a temporary file.

Record
PYSEC-2018-34
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
numpy
PyPI
before 1.8.1
1.8.1
numpy
PyPI
before 1.8.1, plus listed versions
0.9.60.9.81.01.0.31.0.4
Show 21 moreShow less
1.0b11.0b41.0b51.0rc11.0rc21.0rc31.1.11.2.01.2.11.3.01.4.01.4.11.5.01.5.11.6.01.6.11.6.21.7.01.7.11.7.21.8.0
1.8.1
python-numpy
Mageia:3
From an advisory covering 2 CVEs
before 1.6.2-2.1.mga3
1.6.2-2.1.mga3
python-numpy
Mageia:4
From an advisory covering 2 CVEs
before 1.8.0-1.1.mga4
1.8.0-1.1.mga4

History

History
RecordedChangedSources
affected, facts
affected
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2014-1859 is a medium vulnerability (CVSS 5.5) in Numpy, published February 21, 2014. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.47%, the 41st percentile. Fixed in numpy 1.8.1.

References

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