Vulnerability Description
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 Score
HIGH
Related Weaknesses (CWE)
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
FAQ
What is CVE-2026-40200?
CVE-2026-40200 is a vulnerability with a CVSS score of 8.1 (HIGH). 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 ...
How severe is CVE-2026-40200?
CVE-2026-40200 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-40200?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.