CVE-2025-46158: An issue in redoxOS kernel before commit 5d41cd7c allows a local attacker to cause a denial of service via the

Routine

MEDIUM 6.2MITIGATE

CVE-2025-46158 is a medium-severity flaw (CVSS 6.2) affecting redox. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue in redoxOS kernel before commit 5d41cd7c allows a local attacker to cause a denial of service via the `setitimer` syscall

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.2 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 87%)
CISA exploited list	No
Weakness	CWE-369
Published	2025-06-20
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: redox-os

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-06-20 18:15 UTCPublished CVE record published
2026-06-17 09:25 UTCUpdated Record last modified

redox-os redox MITIGATE

Affected: 0.8.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.8.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-46158?

redox: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-46158 being exploited?

CVE-2025-46158 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-46158 affect?

CVE-2025-46158 affects redox. Severity is medium (CVSS 6.2). An issue in redoxOS kernel before commit 5d41cd7c allows a local attacker to cause a denial of service via the `setitimer` syscall

How urgent is CVE-2025-46158?

Priority 30/100. Public exploit reference

Related CVEs

CVE-2024-57493 MEDIUM 5.5 MITIGATE An issue in redoxOS relibc before commit 98aa4ea5 allows a local attacker to cause a denial of service via the
CVE-2024-57492 MEDIUM 5.5 MITIGATE An issue in redoxOS relibc before commit 98aa4ea5 allows a local attacker to cause a denial of service via the

References

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