CVE-2026-40200
8.1
HIGH
CVSS 3.1
EPSS 0.02%
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).
How to fix CVE-2026-40200
To remediate CVE-2026-40200, upgrade the affected package to a fixed version below.
- —upgrade to 1.2.4_git20230717-r6 or later
- —no fix listed
Is CVE-2026-40200 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.2.4_git20230717-r6
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.1 | CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H |