CVE-2026-88830

7.5 highEPSS 0.4%

High (7.5). EPSS 0.4% chance of exploitation in the next 30 days.

A unit confusion in BusyBox TLS Montgomery reduction buffer allocation causes a pre-authentication heap buffer overflow when processing a crafted ClientKeyExchange message.

Severity

CVSS 3.1

7.5 high

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

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 28% of CVEs (scores of 2026-10-31)
CWE: CWE-131
Published: 2026-09-23
Modified: 2026-09-23
Record from: the NVD, synced 2026-10-19

References

https://access.redhat.com/security/cve/CVE-2026-88830
https://bugzilla.redhat.com/show_bug.cgi?id=2531344

Check your stack JSON