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CVE-2025-14104

Util-linux: util-linux: heap buffer overread in setpwnam() when processing 256-byte usernames

Published: Dec 5, 2025Updated: Jun 30, 2026 Sources: CVE List NVD BDUCWE-125
6.1MEDIUM
NVD MITRE
EPSS Score
0.2%
Top 92.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

A flaw was found in util-linux. This vulnerability allows a heap buffer overread when processing 256-byte usernames, specifically within the `setpwnam()` function, affecting SUID (Set User ID) login-utils utilities writing to the password database.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:LI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-125

Affected Products

Red Hat
commercial·US
Red Hat Enterprise Linux 10On-premOS
Operating Systems / linux-distro
Red Hat Ceph Storage 7On-premDatabase
Databases / data-warehouse-analytics
Red Hat Ceph Storage 8On-premDatabase
Databases / data-warehouse-analytics
Red Hat Ceph Storage 9On-prem
Databases / cache-message-queue
Red Hat Hardened ImagesOn-premOS
Operating Systems / linux-distro
Red Hat Insights proxy 1.5On-prem
Enterprise Software / itsm-monitoring
Red Hat Update Infrastructure 5
Operating Systems / linux-distro
Red Hat OpenShift Container Platform 4SaaSSaaS Service
Cloud & SaaS / container-orchestration
util-linux
oss-project
util-linuxMixed
Operating Systems / linux-distro
ООО «РусБИТех-Астра»
commercial·RUaka rusbitech-astra
Astra Linux Special EditionOn-premOS
Operating Systems / linux-distro
АО «СберТех»
commercial·RUaka ao sbertech, сбертех
Platform V SberLinux OS ServerOn-premOS
Operating Systems / linux-distro
Сообщество свободного программного обеспечения
oss-projectaka fsf
util-linux
OSS Libraries / generic-library
АО «РАСУ»
commercial·RU
ПАК КЦПС (DSC-01R)On-prem
ICS / OT / IoT / plc-scada-hmi
and 4 more affected products View all →

Exploitability

Official Patch Available
Workaround Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://access.redhat.com/errata/RHSA-2026:1696
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:1852
access.redhat.com
https://access.redhat.com/errata/RHSA-2026:1913
access.redhat.com
and 14 more references View all →
News mentions
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