CVE-2026-88840

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

  • Published Sep 23, 2026
  • CVSS 5.3 medium
  • 0.2% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-88840 at the National Vulnerability Database