CVE-2014-2667

12

FAUCET Score

CVE-2014-2667 describes a race condition in Python versions 3.2 through 3.5, specifically within the _get_masked_mode function in Lib/os.py. This vulnerability, with a CVSS score of 3.3, could allow local attackers to bypass file permissions under specific multi-threaded conditions where exist_ok is true, potentially leading to partial confidentiality and integrity impacts. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		3.2.0CPE matchmatch criteria	cpe:2.3:a:python:python:3.2.0:::::::*
		3.2.1CPE matchmatch criteria	cpe:2.3:a:python:python:3.2.1:::::::*
		3.2.2CPE matchmatch criteria	cpe:2.3:a:python:python:3.2.2:::::::*
		3.2.3CPE matchmatch criteria	cpe:2.3:a:python:python:3.2.3:::::::*
		3.2.4CPE matchmatch criteria	cpe:2.3:a:python:python:3.2.4:::::::*

CVSS Data

CVSS version used by this source: 2.0

3.3LOW

AV:L/AC:M/Au:N/C:P/I:P/A:N

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Exploitability Score

3.4

Impact Score

4.9

CvssVersion

2.0

Exploit Intelligence

EPSS Score

0.36%

Probability of exploitation in next 30 days

EPSS Percentile

28.2%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0036 is in the 59th percentile among its peer group of 747 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

redhatend of lifevia redhat_api

Product: Red Hat Software CollectionsFixed in: python33-python

Vendor Advisories (1)

redhatCVE-2014-2667Moderate

python: os.makedirs(exist_ok=True) is not thread-safe in Python 3.x

References

bugs.python.org / issue21082

Vendor Advisory

lists.opensuse.org / opensuse-security-announce/2020-01/msg00040.html

lists.opensuse.org / opensuse-updates/2014-05/msg00007.html

lists.opensuse.org / opensuse-updates/2014-05/msg00008.html

security.gentoo.org / glsa/201503-10

openwall.com / lists/oss-security/2014/03/28/15

openwall.com / lists/oss-security/2014/03/29/5

openwall.com / lists/oss-security/2014/03/30/4