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[ CVE-2026-88840 · Published 23 Sep 2026 ]

Vulnerability in Red Hat Hardened Images

CVSS 5.3 EPSS <1%1 agency advisoryNo fix listed yet

[ Description ]Official description

BusyBox TLS get_client_hello() reads past the end of the input buffer when parsing a truncated ClientHello message.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

  • BSI CERT-BundWID-SEC-2026-3557

    BusyBox: Multiple vulnerabilities Translated from German

    Risk mediumCVE-2026-88839CVE-2026-88837CVE-2026-88831+4 more CVEs

[ References ]References