CVE-2026-88831

MEDIUMCVSS 5.3

BusyBox httpd IP deny rules with invalid CIDR prefix lengths fail open, leaving a parsed IP with a zeroed mask so the rule matches no clients.

Published 2026-09-23 · last modified 2026-09-23

Full record at NVD ↗

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Ncerio by BeyondNets · data from NVD, CISA KEV, EPSS.