CVE-2026-40200

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Summary

CVECVE-2026-40200
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-10 17:17:14 UTC
Updated2026-04-10 18:16:46 UTC
DescriptionAn issue was discovered in musl libc 0.7.10 through 1.2.6. Stack-based memory corruption can occur during qsort of very large arrays, due to incorrectly implemented double-word primitives. The number of elements must exceed about seven million, i.e., the 32nd Leonardo number on 32-bit platforms (or the 64th Leonardo number on 64-bit platforms, which is not practical).

Risk And Classification

Primary CVSS: v3.1 8.1 HIGH from [email protected]

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

Problem Types: CWE-670 | CWE-670 CWE-670 Always-Incorrect Control Flow Implementation

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.1HIGHCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
3.1CNADECLARED8.1HIGHCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Musl-libc Musl affected 0.7.10 1.2.6 semver Not specified

References

ReferenceSourceLinkTags
musl.libc.org/releases.html [email protected] musl.libc.org
www.openwall.com/lists/oss-security/2026/04/10/13 [email protected] www.openwall.com
www.openwall.com/lists/oss-security/2026/04/10/13 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
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