CVE-2026-92853
The TLS 1.3 Certificate-message parser in NetX Secure decrements the message length to skip a context byte without first establishing that t
CVSS
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Sem CVSS
EPSS
0.3%
p23
KEV
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Exploit Today
7
0-100
Publicado: 20 de out. de 2026 · Última mod.: 20 de out. de 2026 · CWE-125 · CWE-191
The TLS 1.3 Certificate-message parser in NetX Secure decrements the message length to skip a context byte without first establishing that the message has a byte to skip. A zero-length Certificate message therefore wraps the unsigned length to `0xFFFFFFFF`, which makes the bounds check that follows vacuous and sends the parser reading past the session packet buffer. The trigger is a four-byte handshake header and requires no cryptographic validity. It is reachable pre-authentication.