final int securityBufferLength = SMBUtil.readInt2(buffer, bufferIndex + 2);
        bufferIndex += 4;

        final int negotiateContextOffset = SMBUtil.readInt4(buffer, bufferIndex);
        bufferIndex += 4;

        // Validate security buffer parameters
        if (securityBufferLength < 0 || securityBufferLength > 65536) { // 64KB max for security buffer