CVE-2026-88830
Fixed in a distro release EPSS <1%CVSS 7.5
A unit confusion in BusyBox TLS Montgomery reduction buffer allocation causes a pre-authentication heap buffer overflow when processing a crafted ClientKeyExchange message.
Products: Red Hat Hardened Images
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | busybox | no fix |
| Debian 13 | busybox | no fix |
| Debian 14 | busybox | no fix |
| SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | busybox | 1.35.0-150400.3.23.1 |
| SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | busybox | 1.35.0-150400.3.23.1 |
| SUSE Linux Enterprise Module for Basesystem 15 SP7 | busybox | 1.37.0-150700.18.24.1 |
| SUSE Linux Enterprise Server 12 SP5-LTSS | busybox | 1.35.0-10.12.1 |
| SUSE Linux Enterprise Server 15 SP4-LTSS | busybox | 1.35.0-150400.3.23.1 |
| SUSE Linux Enterprise Server 16.0 | busybox | 1.37.0-160000.8.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | busybox | 1.35.0-10.12.1 |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | busybox | 1.35.0-150400.3.23.1 |
| SUSE Linux Enterprise Server for SAP applications 16.0 | busybox | 1.37.0-160000.8.1 |
| SUSE Linux Micro 6.0 | busybox | 1.36.1-159998.1.1 |
| Ubuntu 20.04 LTS | busybox | no fix |
| Ubuntu 22.04 LTS | busybox | no fix |
| Ubuntu 24.04 LTS | busybox | no fix |
| Ubuntu 26.04 LTS | busybox | no fix |
| Ubuntu 26.10 | busybox | no fix |
| Ubuntu Pro 14.04 LTS | busybox | no fix |
| Ubuntu Pro 16.04 LTS | busybox | no fix |
| Ubuntu Pro 18.04 LTS | busybox | no fix |
| openSUSE Leap 16.0 | busybox | 1.37.0-160000.8.1 |
| openSUSE Tumbleweed | busybox | 1.38.0-3.1 |