OpenBSD input validation error vulnerability

OpenBSD is an open-source, cross-platform BSD-based UNIX-like operating system developed by the OpenBSD Foundation in Canada. Versions of OpenBSD prior to 076e2b1 contained a vulnerability related to input validation errors. This vulnerability stemmed from the fact that the length value in the...

CVE-2026-55706

sppppapinput in sys/net/ifspppsubr.c in OpenBSD before 076e2b1 allows authentication bypass via certain zero values for lengths...