CVE-2026-88830

EUVD-2026-85425
A unit confusion in BusyBox TLS Montgomery reduction buffer allocation causes a pre-authentication heap buffer overflow when processing a crafted ClientKeyExchange message.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 28.95%
Debian logo
Debian Releases
Debian Product
Codename
busybox
bookworm
vulnerable
forky
vulnerable
sid
vulnerable
trixie
no-dsa
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
busybox
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
resolute
needs-triage
stonking
needs-triage
trusty
needs-triage
xenial
needs-triage
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
busybox
suse enterprise desktop 15 SP7
1.37.0-150700.18.24.1
fixed
suse enterprise sap 15 SP4
1.35.0-150400.3.23.1
fixed
suse enterprise sap 15 SP7
1.37.0-150700.18.24.1
fixed
suse enterprise server 15 SP4
1.35.0-150400.3.23.1
fixed
suse enterprise server 15 SP7
1.37.0-150700.18.24.1
fixed
busybox-static
suse enterprise desktop 15 SP7
1.37.0-150700.18.24.1
fixed
suse enterprise sap 15 SP4
1.35.0-150400.3.23.1
fixed
suse enterprise sap 15 SP7
1.37.0-150700.18.24.1
fixed
suse enterprise server 15 SP4
1.35.0-150400.3.23.1
fixed
suse enterprise server 15 SP7
1.37.0-150700.18.24.1
fixed
Common Weakness Enumeration
References
https://access.redhat.com/security/cve/CVE-2026-88830
https://bugzilla.redhat.com/show_bug.cgi?id=2531344