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CVE-2015-5224

25
FAUCET Score

CVE-2015-5224 describes a critical vulnerability in the mkostemp function within login-utils of util-linux, affecting kernel util-linux. This flaw allows remote attackers to cause file name collisions, potentially leading to other attacks. With a CVSS score of 9.8 (CRITICAL), it presents a severe risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. Despite its high severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.26.2CPE matchmatch criteria
cpe:2.3:a:kernel:util-linux:*:*:*:*:*:*:*:*
2.27CPE matchmatch criteria
cpe:2.3:a:kernel:util-linux:2.27:rc1:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
4.53%
Probability of exploitation in next 30 days
EPSS Percentile
90.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0453 is in the 84th percentile among its peer group of 36,833 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2015-5224Low

util-linux: File name collision due to incorrect mkstemp use

Aug 24, 2015

References

bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
github.com / karelzak/util-linux/commit/bde91c85bdc77975155058276f99d2e0f5eab5a9
PatchThird Party Advisory
openwall.com / lists/oss-security/2015/08/24/3
Mailing ListThird Party Advisory
securityfocus.com / bid/76467
Third Party AdvisoryVDB Entry