CVE-2026-40200

CVSS 8.1 HIGHEPSS 0.1%CWE-670

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.1EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

10 Apr 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

An 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).

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

Affected products

musl-libc · musl

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References

https://musl.libc.org/releases.html https://www.openwall.com/lists/oss-security/2026/04/10/13 http://www.openwall.com/lists/oss-security/2026/04/10/13