Incorrect Calculation of Buffer Size Affecting busybox package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.35% (26th percentile)

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  • Snyk IDSNYK-DEBIAN13-BUSYBOX-20138343
  • published25 Sept 2026
  • disclosed23 Sept 2026

Introduced: 23 Sep 2026

CVE-2026-88830  (opens in a new tab)
CWE-131  (opens in a new tab)

How to fix?

There is no fixed version for Debian:13 busybox.

NVD Description

Note: Versions mentioned in the description apply only to the upstream busybox package and not the busybox package as distributed by Debian. See How to fix? for Debian:13 relevant fixed versions and status.

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

CVSS Base Scores

version 3.1