CVE-2014-1858

Arbitrary file write in NumPy

5.5 MediumFix available

CVE-2014-1858 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 0.45%, the 38th percentile. Fixed in numpy 1.8.1.

init.py in f2py in NumPy before 1.8.1 allows 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

0.45%Down 0.8 points since Feb 4, 2022

What each source reports

NVD Score used 5.5

init.py in f2py in NumPy before 1.8.1 allows local users to write to arbitrary files via a symlink attack on a temporary file.

Record: CVE-2014-1858
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-20
Updated: 2026-11-02

CVE List No score

init.py in f2py in NumPy before 1.8.1 allows local users to write to arbitrary files via a symlink attack on a temporary file.

Record: CVE-2014-1858
Updated: 2026-11-02

EUVDEUVD-2018-0107 No score

init.py in f2py in NumPy before 1.8.1 allows local users to write to arbitrary files via a symlink attack on a temporary file.

Record: EUVD-2018-0107
Updated: 2026-11-03

GitHub AdvisoriesGHSA-cw6w-4rcx-xphc 7.1

Arbitrary file write in NumPy

init.py in f2py in NumPy before 1.8.1 allows local users to write to arbitrary files via a symlink attack on a temporary file.

Record: GHSA-cw6w-4rcx-xphc
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-20
Updated: 2026-11-02

OSVGHSA-cw6w-4rcx-xphc 7.1

Arbitrary file write in NumPy

init.py in f2py in NumPy before 1.8.1 allows local users to write to arbitrary files via a symlink attack on a temporary file.

Record: GHSA-cw6w-4rcx-xphc
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-20
Updated: 2026-11-02

OSVUBUNTU-CVE-2014-1858 5.5

init.py in f2py in NumPy before 1.8.1 allows local users to write to arbitrary files via a symlink attack on a temporary file.

Record: UBUNTU-CVE-2014-1858
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

OSVMGASA-2014-0089 No 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-2018-33 No score

init.py in f2py in NumPy before 1.8.1 allows local users to write to arbitrary files via a symlink attack on a temporary file.

Record: PYSEC-2018-33
Updated: 2026-11-02

Affected products

numpy

Affected packages

Affected packages
Package	Affected	Fixed
`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	before 1.6.2-2.1.mga3	1.6.2-2.1.mga3
`python-numpy` Mageia:4	before 1.8.0-1.1.mga4	1.8.0-1.1.mga4

History

History
When	Changed	Sources
2026-11-03	affected
2026-11-03	aliases	EUVD
2026-11-02	created	CVE List, GitHub Advisories, NVD, OSV

References

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