CVE-2026-38640

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Summary

CVECVE-2026-38640
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-25 21:16:27 UTC
Updated2026-06-26 20:25:42 UTC
DescriptionA reachable unwrap in the __assert_fail function (/assert/mod.rs) of relibc commit 61f42d allows attackers to cause a Denial of Service (DoS) via a crafted string.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.004460000 probability, percentile 0.356600000 (date 2026-06-29)

Problem Types: CWE-400 | n/a | CWE-400 CWE-400 Uncontrolled Resource Consumption

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
github.com/Marsman1996/pocs/tree/master/redox/CVE-2026-38640 [email protected] github.com
gitlab.redox-os.org/redox-os/relibc/-/issues/262 [email protected] gitlab.redox-os.org
gitlab.redox-os.org/redox-os/relibc/-/merge_requests/986 [email protected] gitlab.redox-os.org
gitlab.redox-os.org/redox-os/relibc/-/work_items/262 [email protected] gitlab.redox-os.org
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