CVE-2025-4437

mediumpriority · track · 0EPSS 0.002 · 16 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.25% (16th) EPSS

CVSS 5.7 · medium

Is it mine?

2 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · osv

EPSS · scored 2026-10-28

There's a vulnerability in the CRI-O application where when container is launched with securityContext.runAsUser specifying a non-existent user, CRI-O attempts to create the user, reading the container's entire /etc/passwd file into memory. If this file is excessively large, it can cause the a high memory consumption leading applications to be killed due to out-of-memory. As a result a denial-of-service can be achieved, possibly disrupting other pods and services running in the same host.

cvss

Technical severity, 0–10. One row per scoring source.

5.7

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.7mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.15.7mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:Hsecondary · secalert@redhat.com USexploitability 2.1 · impact 3.6

v3.15.7mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:Hsecondary · OSV

v3.15.2mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-770USCWE-770US

affected products (2)

Products and version ranges known to be affected.

Go github.com/cri-o/cri-o≤ 1.33.3osvUSpkg:golang/github.com/cri-o/cri-o
Go github.com/cri-o/cri-oall versionsosvUSpkg:golang/github.com/cri-o/cri-o

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-8f93-j3fx-72f3CRI-O has Potential High Memory Consumption from File Read2025-08-20ghsa · osvUS
There's a vulnerability in the CRI-O application where when container is launched with securityContext.runAsUser specifying a non-existent user, CRI-O attempts to create the user, reading the container's entire /etc/passwd file into memory. If this file is excessively large, it can cause the a high memory consumption leading applications to be killed due to out-of-memory. As a result a denial-of-service can be achieved, possibly disrupting other pods and services running in the same host.
GO-2025-3897CRI-O has Potential High Memory Consumption from File Read in github.com/cri-o/cri-o2025-08-29vendor · osvUS
CRI-O has Potential High Memory Consumption from File Read in github.com/cri-o/cri-o

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv NVD CVE.org MITRE

published 2025-08-20modified 2026-09-01

references (7)

External citations — patches, advisories, analysis.

scry

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