An issue in the pthread_rwlockattr_setpshared() function of relibc commit 61f42d allows attackers to cause a Denial of Service (DoS) via a crafted input.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00168.

Exploitation none

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
n/a n/a affected
Version Status Constraints
n/a affected —

No data.

No data.

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Vendors Products
Redox-os Subscribe
Relibc Subscribe

Project Subscriptions

Vendors Products
Redox-os Subscribe
Relibc Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/Marsman1996/pocs/tree/master/redox/CVE-2026-38637 cve-icon
https://gitlab.redox-os.org/redox-os/relibc/-/issues/264 cve-icon
https://gitlab.redox-os.org/redox-os/relibc/-/merge_requests/987 cve-icon
https://gitlab.redox-os.org/redox-os/relibc/-/work_items/264 cve-icon
History

Fri, 26 Jun 2026 14:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 26 Jun 2026 10:45:00 +0000

Type Values Removed Values Added
First Time appeared Redox-os
Redox-os relibc
Vendors & Products Redox-os
Redox-os relibc

Thu, 25 Jun 2026 22:45:00 +0000

Type Values Removed Values Added
Title Denial of Service via Crafted Input to pthread_rwlockattr_setpshared in relibc
Weaknesses CWE-20

Thu, 25 Jun 2026 21:00:00 +0000

Type Values Removed Values Added
Description An issue in the pthread_rwlockattr_setpshared() function of relibc commit 61f42d allows attackers to cause a Denial of Service (DoS) via a crafted input.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-06-26T14:08:08.835Z

Reserved: 2026-04-06T00:00:00.000Z

Link: CVE-2026-38637

cve-icon Vulnrichment

Updated: 2026-06-26T14:08:04.118Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-26T09:39:54Z

Weaknesses