CVE Tools
Sign in

CVE-2025-14104

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

Published: Dec 5, 2025Updated: Apr 19, 2026 Sources: CVE List NVD BDUCWE-125
NVD MITRE
6.1CVSSMEDIUM
EPSS Score
0.2%
Top 92.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

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

util-linuxutil-linux
Mixed
Operating Systems / linux-distro
Red Hat Enterprise Linux 10Red Hat
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 8Red Hat
On-premOS
Operating Systems / linux-distro
Red Hat Enterprise Linux 9Red Hat
On-premOS
Operating Systems / linux-distro
Red Hat Ceph Storage 7Red Hat
On-prem
Operating Systems / linux-distro
util-linuxoss-projectOperating Systems
red hatcommercialUSOperating Systemsaka red hat
and 12 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available
Workaround Available

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 →

Timeline

Published
Dec 5, 2025
Last Updated
Apr 19, 2026

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2025-14104 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows