CVE coverage
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CVE-2026-88840
CVSS 5.3
no coverage
BusyBox TLS get_client_hello() reads past the end of the input buffer when parsing a truncated ClientHello message.
Detection rules
No detection found — yet
None of Sigma, Elastic, Splunk ESCU, YARA, Microsoft Sentinel, Snort, or Suricata currently has a rule referencing CVE-2026-88840.